Left Thumb Research Articles

DP15 ‘Unwell water’: the potential importance of environmental factors in skin cancer in people of colour

Abstract Ultraviolet radiation (UVR) is the most common environmental carcinogen to cause cutaneous squamous cell carcinoma (cSCC). However, other carcinogens may also play a role and should be suspected when cSCC occurs in people with skin of colour (SOC) in whom ultraviolet (UV)-induced cSCC is less common. We present the case of a South Asian female who presented with an aggressive cSCC, which we hypothesize was related to previous arsenic exposure. A 70-year-old Bangladeshi woman (skin phototype V) presented with a 4-cm diameter, tender, keratotic plaque at the base of her left thumb, which had been present for 12 years and was slowly enlarging. There was no associated lymphadenopathy. She also had multiple palmoplantar keratotic papules and two hyperkeratotic plaques in UV-protected areas on her trunk. Histology of the lesion on her thumb confirmed a cSCC with high-risk features: poorly differentiated, invasion 9.5 mm into fibromuscular tissue, perineural invasion (nerve diameter > 0.1 mm) and vascular invasion. The truncal plaques were confirmed to be SCC in situ. The cSCC was incompletely excised and subsequently showed extensive involvement of periosteal soft tissues with invasion into bone marrow. Staging computed tomography showed no evidence of nodal or distant metastatic disease. She subsequently underwent ray amputation and remains under close clinical surveillance. Given the cSCC location and her skin phototype, potential non-UV radiation (UVR) causes were explored. In view of the palmoplantar keratotic papules and SCC in situ, chronic arsenic exposure was suspected. Further questioning revealed a history of drinking well water in a rural village in Bangladesh throughout childhood and early adulthood, although exposure had stopped > 40 years ago. Arsenic exposure from contaminated groundwater was therefore considered to be the most likely diagnosis. She was started on long-term chemoprevention with acitretin. Arsenic is a potent human carcinogen and a well-recognized cause of cSCC; the latency period may be 30–40 years. Most cases are likely to be in people exposed through environmental arsenic exposure, such as contaminated groundwater, with some cases of exposure to arsenic-containing traditional medicines also reported. Carcinogenic mechanisms are uncertain but may involve dysregulation of the Hippo signalling pathway. In summary, although the incidence of UVR-related cSCC is lower, this case highlights the importance of considering risk factors, other than UVR, in cSCC arising in people with SOC. Identifying relevant carcinogens may require a detailed travel, social and cultural history and, more importantly, an awareness of the non-UVR causes of cSCC.

Anterior interosseous nerve syndrome following infection with COVID-19: a case report

BackgroundVarious neurological manifestations associated with coronavirus disease 2019 have been increasingly reported. Herein, we report a rare case of anterior interosseous nerve syndrome, which occurred 5 days after the onset of coronavirus disease 2019.Case presentationA 62-year-old Asian woman with a history of coronavirus disease 2019 who developed a complete motor deficit in the left flexor pollicis longus and pronator quadratus without sensory deficits. The symptoms appeared as a sudden onset fatigue and severe pain of the left arm, 5 days after the onset of coronavirus disease 2019. She noticed paralysis of the left thumb at 2 weeks after the onset of coronavirus disease 2019. Electromyography assessment of the anterior interosseous nerve-dominated muscles revealed neurogenic changes such as positive sharp wave and fibrillation in flexor pollicis longus and pronator quadratus, confirming the diagnosis of anterior interosseous nerve syndrome. There were no other diseases that could have resulted in peripheral nerve palsy. We performed a functional reconstruction surgery of the thumb by tendon transfer from the extensor carpi radialis longus to the flexor pollicis longus. The patient reported a good patient-reported outcome (2.27 points in QuickDASH Disability/Symptom scoring and 5 points in Hand20 scoring) at final follow-up (1 year after the surgery).ConclusionThis case highlights the need for vigilance regarding the possible development of anterior interosseous nerve syndrome in patients with coronavirus disease 2019. Tendon transfer from extensor carpi radialis longus to flexor pollicis longus can provide good functional recovery for unrecovered motor paralysis after anterior interosseous nerve syndrome.

Descriptive Study of the Idoma People and Pattern of Hand Clasping

Introduction: There are millions of people in the world but no two humans are exactly alike not even identical twins. Genetic variations in man are caused by several environmental factors acting alongside with selection, gene flow, genetic drift and migration. Studies have been done on morphogenetic traits such as the pattern of hand clasping in some parts of Africa and among some tribes in southern region of Nigeria but there is no available data on the pattern of hand clasping among the Idoma tribe of Benue State. Hence, this study aimed to determine the pattern of hand clasping among the Idoma people of Benue State, Nigeria. Materials and Methods: The study was community-based, descriptive, and cross-sectional with a sample size of 401. Data was collected using a closed-ended questionnaire that was administered by an interviewer following an examination of hand clasping pattern. Results and Discussion: The proportion of participants that expressed hand clasping with the left thumb on top was 16.7%, while right thumb on top was 83.3%. There were no significant socio-demographic characteristics among participants (p > 0.05). Conclusions: The study implies that hand clasping with the right thumb on top is a marked characteristic of the people of Idoma and, as such, can be used to identify them amongst other tribes where the identity of the tribes is not known ab initio.

Median Nerve Neuropathy Caused by Persistent Median Artery Thrombosis

Summary: Persistent median artery thrombosis mimicking carpal tunnel syndrome is rare. Here, we report the pathological, ultrasonography, and intraoperative findings of a case of persistent median artery thrombosis mimicking carpal tunnel syndrome. A 34-year-old man reported to our clinic with a complaint of numbness in his left thumb, index finger, and middle finger, which are innervated by the left median nerve. He also reported that he felt pain in his left wrist and distal forearm while working. Although findings of the usual provocative tests and nerve conduction studies were normal, ultrasonography revealed arterial thrombosis at the carpal tunnel level, whereas magnetic imaging showed persistent median artery thrombosis in the carpal tunnel. Three months after surgical resection of the thrombosed section of the artery, the patient fully recovered with no residual pain or limitations in the use of the affected arm. His patient-reported outcomes improved as well. It is important to investigate the existence of persistent median artery thrombosis if a patient presents with atypical symptoms of carpal tunnel syndrome. Ultrasonography is useful for the diagnosis of persistent median artery thrombosis. Surgical resection of a thrombosed persistent median artery in patients with carpal tunnel syndrome yields good results.

Swipe gestures for user authentication in smartphones

As more people rely on smartphones to store sensitive information, the need for robust security measures is all the more pressing. Because traditional one shot authentication methods like PINs and passwords are vulnerable to various attacks, we present a behavioral biometrics based smartphone authentication system using swipes. While previous research focused on a single kind of swipe, our data set features swipes using different fingers and directions collected from 36 users across three sessions. In our system, we experimented with support vector machine (SVM) and random forest (RF) classifiers. We investigated which finger, direction, and classifier provided the best individual swipe authentication results. Then, we analyzed whether fusion of different fingers and directions improved results. The best unimodal result came from a rightward swipe with right thumb using SVM, which resulted in an area under ROC curve (AUC) of 0.936 and an equal error rate (EER) of 0.135. We found that swipes using thumbs offered better performance. Fusion improves results for the most part, and our best result was the combination of a leftward swipe with right thumb and a leftward swipe with left thumb. This combination gave an AUC of 0.969 and EER of 0.081 with the SVM classifier.

Test–Retest Reliability and Precision of the Rotterdam Intrinsic Hand Myometer

The purpose of this study was to determine the test-retest reliability and precision of Rotterdam Intrinsic Hand Myometer (RIHM) in healthy adults. Twenty-nine participants originally recruited via convenience sampling at a Midwestern state fair returned approximately 8 days later for retest. An average of three trials for each of the five intrinsic hand strength measurements were collected using the same technique that was used during initial testing. Test-retest reliability was assessed using the intraclass correlation coefficient or ICC(2,3) and precision was evaluated using the standard error of measurement (SEM), and the minimal detectable change (MDC90)/MDC%. Across all measures of intrinsic strength, the RIHM and its standardized procedures had excellent test-retest reliability. Index finger metacarpophalangeal flexion demonstrated the lowest reliability, and right small finger abduction, left thumb carpometacarpal abduction, and index finger metacarpophalangeal abduction tests had the highest reliability. Precision, as evidenced by SEM and MDC values, was excellent for tests of left index and bilateral small finger abduction strength and acceptable for all other measurements. Test-retest reliability and precision of RIHM across all measurements was excellent. These findings indicate that RIHM is a reliable and precise tool in measuring intrinsic strength of hands of healthy adults, although further research is needed in clinical populations.

A neonate with multiple hand flexor tendon ruptures due to methicillin-susceptible Staphylococcus aureus sepsis: a case report

BackgroundNeonatal pyogenic tenosynovitis is a highly emergent soft tissue infection. We report a case of a neonate with pyogenic tendinopathy and tendon rupture diagnosed by ultrasonography (US). He subsequently developed pyogenic arthritis and osteomyelitis during antimicrobial therapy.Case presentationA 7-day-old boy was admitted to our hospital with redness and swelling of the right index finger. US on admission showed rupture of the flexor tendon of the right index finger with inactivity. The day after admission, he developed pyogenic arthritis of the right elbow and, subsequently, pyogenic osteomyelitis. Staphylococcus aureus was identified through bacterial culture, and the patient was treated with intravenous antibiotics for 6 weeks. However, after discharge from our hospital, rupture of the flexor tendon of the left thumb was confirmed. A two-stage flexor tendinoplasty was completed at the age of 2 years and 1 month for the flexor tendon rupture on his right index finger.ConclusionsIn addition to blood culture, ultrasonographic evaluation should be performed in neonates with erythematous and swollen joints to identify the focus of infection as soon as possible. Moreover, repeated regular US examination is important in the follow-up of bone and soft tissue infections.

Severe skin and soft tissue infection in the left upper limb caused by Aeromonas veronii: a case report

IntroductionSkin and soft tissue infections are common because of exposure to aquatic environment, while severe infections caused by Aeromonas veronii are rare.Case presentationWe report a case of severe skin and soft tissue infection of the left upper limb caused by Aeromonas veronii. A 50-year-old Chinese woman, who had a history of cardiac disease and type 2 diabetes mellitus, accidentally injured her left thumb while cutting a fish. Early antibiotic therapy and surgical debridement was performed before the result of bacterial culture came back. Whole-genome sequencing was further performed to confirm the pathogen and reveal the drug resistance and virulence genes. The wound was gradually repaired after 1 month of treatment, and the left hand recovered well in appearance and function after 3 months of rehabilitation.ConclusionEarly diagnosis, surgical intervention, and administration of appropriate antibiotics are crucial for patients who are suspected of having skin and soft tissue infection, or septicemia caused by Aeromonas veronii.

Somatosensory and motor representations following bilateral transplants of the hands: A 6-year longitudinal case report on the first pediatric bilateral hand transplant patient

A vascularized composite tissue allotransplantation (VCA) was performed at the Children’s Hospital of Philadelphia (CHOP), on an 8-year-old patient in 2015, six years after bilateral hand and foot amputation. Hand VCA resulted in reafferentation of the medial, ulnar, and radial nerves serving hand somatosensation and motor function. We used magnetoencephalography (MEG) to assess somatosensory cortical plasticity following the post-transplantation recovery of the peripheral sensory nerves of the hands. Our 2-year postoperative MEG showed that somatosensory lip representations, initially observed at “hand areas”, reverted to canonical, orthotopic lip locations with recovery of post-transplant hand function. Here, we continue the assessment of motor and somatosensory responses up to 6-years post-transplant. Magnetoencephalographic somatosensory responses were recorded eight times over a six-year period following hand transplantation, using a 275-channel MEG system. Somatosensory tactile stimuli were presented to the right lower lip (all 8 visits) as well as right and left index fingers (visits 3-8) and fifth digits (visits 4-8). In addition, left and right-hand motor responses were also recorded for left index finger and right thumb (visit 8 only).During the acute recovery phase (visits 3 and 4), somatosensory responses of the digits were observed to be significantly larger and more phasic (i.e., smoother) than controls. Subsequent measures showed that digit responses maintain this atypical response profile (evoked-response magnitudes typically exceed 1 picoTesla). Orthotopic somatosensory localization of the lip, D2, and D5 was preserved. Motor beta-band desynchrony was age-typical in localization and response magnitude; however, the motor gamma-band response was significantly larger than that observed in a reference population.These novel findings show that the restoration of somatosensory input of the hands resulted in persistent and atypically large cortical responses to digit stimulation, which remain atypically large at 6 years post-transplant; there is no known perceptual correlate, and no reports of phantom pain. Normal somatosensory organization of the lip, D2, and D5 representation remain stable following post-recovery reorganization of the lip’s somatosensory response.

Journal Digest: Treatment-Emergent Mania, Fingerprint Scans, and More

Journal Digest: Treatment-Emergent Mania, Fingerprint Scans, and More

An Unusual Case of Post-traumatic Intramuscular Organised Haematoma of the Left Hand

An organised haematoma is a benign cystic lesion in which the haematoma is enclosed by a superficial fibrotic capsule. It is also referred to as chronic expanding haematoma or hematic cyst. Organised haematoma can be observed in various sites, but it is extremely rare to find it in an intramuscular location. This is a rare case of organised haematoma in the palm of the left hand of a 75- year-old female, which occurred after an accidental injury from broken bangles fifteen years ago. The swelling gradually increased in size and became painful over the years. A pre-operative Magnetic Resonance Image (MRI) revealed a well-defined, large soft tissue density lesion located in the subcutaneous plane of the interdigital space between the left thumb and index finger, extending into the volar and dorsal aspects of the hand. An incision was made on the skin over the swelling, followed by excision. The patient was discharged with a good post-operative outcome.

A Case of Angiomatoid Epithelioid Sarcoma Mimicking an Epithelioid Vascular Neoplasm

Epithelioid sarcoma is a rare but aggressive soft tissue sarcoma that presents a significant diagnostic and management challenge to clinicians. We report a 31-year-old female who presented with a non-healing ulcer of three years’ duration on her left thumb after a burn. Examination revealed an ulcerative tumour invading the bone with areas of haemorrhage. Microscopic examination showed an epithelioid neoplasm with central necrosis. The neoplastic cells formed dyscohesive sheets, slit-like channels, and pseudovascular spaces. Erythrocytes were frequently observed in these areas. The neoplastic malignant cells were diffusely positive for cytokeratin AE1/AE3, EMA, vimentin, Fli-1; while focally positive for CD34 and CD31. The morphology and immunophenotype overlap with a vascular neoplasm. Additional immunohistochemical stain revealed loss of SMARCB1/INI1 expression supporting the diagnosis of epithelioid sarcoma of distal type, angiomatoid variant. We present a distinctive case of angiomatoid epithelioid sarcoma that developed in a burn ulcer and highlight pathological characteristics that distinguish it from epithelioid vascular neoplasms.

His Own Hand

i. What the Right Hand IsTake my right hand—the index finger crookedfrom a long-forgotten break; the dintwhere a melon spoon of cells, precancerous,has been scooped out; the little crescentmoons under each nail, the nails badly bitten;the worn-out cartilage at the base of the thumbthat ruins my grip and sometimes sleep, when boneof metacarpal scrapes trapezium:it's an old hand, but take it, and allit screwed in or up, hammered or caressed,lines botched, weeds pulled, promises kept. Small-time doer even when it does its best,it is doubled in yours, and fear is halvedof age manhandling our kind and loving craft.ii. What the Left Hand DoesAge manhandles my kind and loving craft.Item: My left is acting on its own.Example: As I proof a poem online,it hovers over the keys, then slowlydescends, wrist relaxes, a fingertipdrops, depressing almost always a d or t,plosive consonants that blow up the wordthey land on, bomblets from a passing plane.This is not how I pictured my later years,worried about an errant hand. Item:When I pass my cluttered desk, how oftenit drags off a tottering book or stack of papers.The left thumb became arthritic first:that hand lifts and grasps, the doctor said,its partner finesses. Right has beenthe writer since I was young, Leftthe written on. At ballgames, the rightgoes over the heart, the left dangles. Rightthrows, Left wears a glove to catch.Dexter acts, Sinister suffers. Item:The right waves happily as a child departs,the left clasps the back of the neck in grief.iii. ProdigalHe first clasped the neck of his son in joy,not grief—the aging father in Rembrandt'sReturn—then the shoulder and back of his boykneeling, one shoe off, one on. The large handon our right, Father's left hand, is the roughenedhand of clenching and judging, the peasant'swho handed his queen, unwomaned, a gift of snakes.The hand on our left, smaller for pity's sake,is feminine and soothing, made to caress.The big hand is grasping the shoulder in fearhe will lose the boy again; more hopeful, gentler,the other touches him with lovingkindness.Return again and be Our sons and daughters,Yahweh pleads, Return: We will be Fatherand Mother. Prodigal says, I am a man:look at these scars on my hand.iv. Fingers Look at the scars on my handand on my fingers, clumsy clawsthat are fat and short, rawsausages, not digits—spillers,knockers over, arthritic grippers,nailhead missers and thread strippers,packaging grapplers, tyers of shoesthat won't stay tied, slappersof skeeters, swatters of flies,typo makers, smearers, droppersof eggs and messy breakables,pimple-, bubble-, button poppers,filchers of river-rounded pebblesfor garden paths, china breakersand rim chippers, crystal-crackers(they've cost me dearly), rock skippers,just once (I swear) bird flippers,zipper-downers and zipper-uppers,and takers of the Lord's Supper.Often, too often, have they failed me—look at the piles of scribbled verse—but did not punch or thieve or worse,or do much shameful or barbarous,unlike the fingers Rodin sculptedbristling and lurking in the dark,that (wrote Rilke) seemed to barklike the five throats of Cerberus.

Fingerprints as Predictors of Schizophrenia: A Deep Learning Study.

The existing developmental bond between fingerprint generation and growth of the central nervous system points to a potential use of fingerprints as risk markers in schizophrenia. However, the high complexity of fingerprints geometrical patterns may require flexible algorithms capable of characterizing such complexity. Based on an initial sample of scanned fingerprints from 612 patients with a diagnosis of non-affective psychosis and 844 healthy subjects, we have built deep learning classification algorithms based on convolutional neural networks. Previously, the general architecture of the network was chosen from exploratory fittings carried out with an independent fingerprint dataset from the National Institute of Standards and Technology. The network architecture was then applied for building classification algorithms (patients vs controls) based on single fingers and multi-input models. Unbiased estimates of classification accuracy were obtained by applying a 5-fold cross-validation scheme. The highest level of accuracy from networks based on single fingers was achieved by the right thumb network (weighted validation accuracy = 68%), while the highest accuracy from the multi-input models was attained by the model that simultaneously used images from the left thumb, index and middle fingers (weighted validation accuracy = 70%). Although fitted models were based on data from patients with a well established diagnosis, since fingerprints remain lifelong stable after birth, our results imply that fingerprints may be applied as early predictors of psychosis. Specially, if they are used in high prevalence subpopulations such as those of individuals at high risk for psychosis.

Grade III bilateral trigger thumbs treated by prolotherapy: a case report

Introduction: Trigger Thumb is a condition that is caused by a thickened A-1 pulley, often secondary to a stenosed tendon sheath. There are several treatment options for trigger thumb, yet the use of prolotherapy to treat Trigger Thumb has not been widely discussed in the literature. Therefore, this study aims to present the case of Bilateral Trigger Thumbs which were treated using Prolotherapy.
 Case: A 49-year-old female patient was admitted to the hospital with a complaint of inability to flex his both left & right thumbs two months ago. On physical examination, there was pain and swelling at the base, palmar side of his both thumbs, tender in consistency, and warm. There was a pain in daily activities using his both hands. There wasn’t a history of trauma. The range of motion of both thumbs was decreased. The prolotherapy was given to the right thumb, yet the left thumb was treated by lidocaine injection only. After several treatments using prolotherapy, the right thumb showed better results compared to the left by increasing ROM, decreasing pain level and swelling, and the improving function of the right thumb.
 Conclusion: In this case, the right thumb, which was treated with prolotherapy, has shown better results compared to the left thumb which was treated with medication only. We suggest prolotherapy to treat trigger fingers for the other patients in our hospital.

Digital Mucous Cyst: An Educational Image and Mini-Review

Background: Digital mucous cyst is a benign painless skin lesion most commonly observed on the dorsum of the terminal digits, and sometimes on the toes. The lesion generally solitary and less than 10 mm in diameter. It can be opalescent or has the color of the skin. Diagnosis of the condition can be established on clinical basis. Patients and methods: A healthy man who was born in 1983 consulted us about a small lump on the dorsum of the left thumb. Images are presented, diagnosis is described, and a brief educational review is presented. Results: The lump was painless and has been noticed more than two years ago. It was cystic in nature and located on the dorsum of the terminal phalanx of the left thumb. It was less than 10 mm in diameter. The diagnosis of digital mucous cyst was made. Conclusion: Although consensus has not been confirmed regarding the treatment of digital mucous cyst, small and asymptomatic lesion needs no further treatment or follow-up.

P216 Rare isolates from subcutaneous mycotic lesions; A study from tertiary care center in Chhattisgarh, India

Poster session 2, September 22, 2022, 12:30 PM - 1:30 PMAims and ObjectiveTo identify the causative agents of suspected subcutaneous mycosis patients attending to a tertiary care hospital, Chhattisgarh, India.IntroductionSubcutaneous mycoses are a group of fungal infections of dermis and subcutaneous tissue caused by both melanized and hyaline molds. It often affects patients with immunosuppressive conditions. It consists of Sporotrichosis, Chromoblastomycosis, Phaeohyphomycosis, Hyalohyphomycosis, Mycetoma, subcutaneous zygomycosis, Rhinosporidiosis, Lobomycosis, and disseminated Penicilliosis. There are proven pathogenic agents causing subcutaneous mycosis though are not regularly isolated and reported. Few of them are commonly come across in the laboratory. Herewith, emphasized on the unusual clinical isolates from the patients having subcutaneous mycotic lesions with their clinical details.MethodIt is a retrospective descriptive analysis of data of subcutaneous mycosis cases of duration January 2019 to March 2022.Total 52 clinical specimens from the suspected subcutaneous mycotic lesion were studied. Male dominance was observed amongst the patients. Amongst 52, 31% were detected positive for fungal elements by direct microscopy in 20% KOH mount, 55.7%, 25% positivity was observed in Culture and by both KOH wet mount and culture. Samples were processed and identified by using standard protocol.The significant unusual isolates identified were Conidiobolus coronatus from subcutaneous cyst from buttocks, Medicopsis romerai from fine needle aspiration from the nodule of left thumb, Rhytidhysteron rufulum from right lateral malleolus, Aquastroma magniostiolata species from subcutaneous cyst on lateral aspect of left lower leg above lateral malleolus, Aspergillus tamorii, Aspergillus glaucus, Chetomium species, Aspergillus montevidensis, Cladosporium sphaerospermum. Phenotypically unidentified isolates were sent to NCCPF PGI, Chandigarh for final identification.ConclusionThere is diversity in the etiological agents of subcutaneous mycoses. Every case is different and rare. With the help of molecular techniques, it became possible to identify unusual fungal isolates from subcutaneous infection. Awareness and extensive studies are required to evidence the pathogenicity and associated complication due to these fungal infections. It will also help to regulate the therapeutic management and to know the geographical distribution of unusual fungal agents.

Cutaneous Anthrax in a Farmer Man: A Case Report

Introduction: Anthrax is an acute infection caused by Bacillus anthracis, an anaerobic, spore-forming, Gram-positive bacterium. Anthrax disease is a common disease among herbivores and humans that is transmitted to humans through direct contact with farm animals that are sick or have died of anthrax. Case Summary: A 43-year-old man having livestock as a profession had a cutaneous anthrax infection on the dorsal surface of his left thumb. The patient was infected with anthrax by slaughtering a sheep infected with Bacillus anthracis. He was treated with penicillin after an early diagnosis of anthrax bacillus. Conclusion: Anthrax infection is a highly contagious disease, and early detection is very important. There is a need to strengthen the health care system for farm animals and educate farmers on how not to consume the meat of diseased carcasses and how to dispose them of hygienically, especially in high-risk areas.

Thumb print patterns in relation to gender and blood groups: A study in central district of Tamil Nadu

In the presentexamination, an endeavor has been made to study the fingerprint patterns in Central district of Tamil Nadu population. Thumb print patterns in relation with gender and blood group were studied in 275 participants,134 males and 141 females among the age group 18-25. The present study was conducted at the department of biotechnology, V.S.B. Engineering College, Karur district during the year 2022. Fingerprint patterns were studied in left and right thumb among males & females and analyzed with ABO blood grouping.The outcome demonstrated that the predominant pattern among both male and female was the loop, trailed by whorl and arches.

Fingerprints white line counts (fWLC): An unfolding panacea of body composition estimation among students of selected tertiary institution in Kano State Nigeria

The term "fingerprint white lines (fWL)" refers to a region of ridge hypoplasia that appears as white lines in a captured fingerprint, dubbed "white lines". The aim of this work was to see if there is any sexual dimorphism in fingerprint white line count (fWLC) and body composition parameters (BCP), as well as look into the relationship between the two. The study was a cross sectional design with 300 participants. The body composition parameters were measured using a bioelectric impedance machine. The fingerprint was captured using a live scanner to determine the fWLC. Females had considerably higher metabolic age, body fat, and visceral fat. In all ten digits, statistically significant differences in fWLC were found. Females were shown to have a higher fWLC, metabolic age, body fat, and visceral fat than males. Except for percent body fat, the fWLC revealed a significant negative correlation with all body composition indices. The fWLC of the left thumb correlates with percent visceral fat while the left and right middle fWLC showed a significant correlation with metabolic age. All ten digits fWLC had a strong link with percent body fat, percent muscle mass, and resting metabolism, with the left ring and thumb fWLC having a higher correlation. Thumb, index, middle, and little fWLC of the left digit, and middle and ring fWLC of the right digit are used to calculate BMI. The greatest predictors for BMI and percent body fat were found to be the left middle and right little digits fWLC. Left ring and right middle digit fWLC were the best predictors of percentage muscle mass and metabolic ages, respectively. Both resting metabolism and percent visceral fat were best predicted by the left thumb fWLC. Finally, sexual dimorphism in relation to BCP and fWLC was discovered.