Finger Drop Research Articles

Guillain-Barré syndrome with overlap between the finger drop variant and acute bulbar palsy: a case report

BackgroundGuillain-Barré syndrome (GBS) is a clinically heterogenous disease and encompasses several distinct clinical variants. Overlap between these variants can pose a diagnostic challenge. We report a case of finger drop variant and acute bulbar palsy overlap as an unusual manifestation of GBS.Case presentationAn 81-year-old man presented with dysarthria, dysphagia, and upper limb weakness. Neurological examination revealed impaired tongue protrusion, the finger drop sign, and diminished brachioradial and triceps muscle reflexes. Nerve conduction studies showed reduced amplitudes and decreased velocities in the median and ulnar nerves. Cerebrospinal fluid analysis revealed albuminocytological dissociation and an anti-ganglioside antibody study revealed positivity for GM1, asialo-GM1, GT1a, GD1b, and GQ1b. As GBS was suspected, we initiated intravenous immunoglobulin treatment, resulting in gradual improvement within the next 3 weeks.ConclusionTo the best of our knowledge, this is the first reported case of an overlap between the finger drop variant and acute bulbar palsy in GBS, highlighting the importance of considering GBS when patients present with a combination of atypical symptoms. Anti-ganglioside antibodies can be helpful and add diagnostic value in these complex cases.

The MaNAP1-MaMADS1 transcription factor module mediates ethylene-regulated peel softening and ripening in banana.

The banana (Musa spp.) peel undergoes rapid softening during ripening, leading to finger drop and a shortened shelf life. The regulatory mechanism behind this process remains to be elucidated. In this study, we confirmed the role of peel softening in banana finger drop and uncovered the underlying transcriptional regulatory network. Cell wall-related (CWR) genes were substantially upregulated in both the peel and finger drop zone during ethylene-induced ripening. Transcriptome analysis and genome-wide profiling of chromatin accessibility and transcription factor (TF) binding revealed that two key regulators of fruit ripening, Musa acuminata NAC-like, Activated by apetala3/Pistillata1 (MaNAP1) and MaMADS1, regulate CWR genes by directly binding to their promoters or by targeting other ripening-related TFs to form a hierarchical regulatory network. Notably, MaNAP1 and MaMADS1 were directly targeted by ETHYLENE INSENSITIVE3 (MaEIN3), and MaNAP1 and MaMADS1 associated with tissue-specific histone modifications, enabling them to integrate MaEIN3-mediated ethylene signaling and undergo epigenetic regulation. Overexpression of MaNAP1, MaMADS1 or other identified regulatory TFs upregulated CWR genes and promoted peel softening. Our findings unveil a MaNAP1-MaMADS1-centered regulatory cascade governing banana peel softening and finger drop, offering potential targets for enhancing banana texture and shelf life.

Posterior interosseous nerve lesion due to lipoma. Review of the literature and rare case presentation.

Posterior interosseous nerve lesion is a rare mononeuropathy of the upper limb. Atraumatic posterior interosseous nerve lesions are commonly caused by lipomas of the forearm, manifesting as slow-progressing wrist and finger drop. In this review and case report study, we present a systematic review of the literature for patients presenting with posterior interosseous palsy due to lipomas and a rare case of patient with acute posterior interosseous nerve lesion caused by a lipoma. Our primary interest was in the timing of clinical presentation. For the review process, we followed the Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines. After reviewing the literature, we identified thirty patients with posterior interosseous nerve lesions caused by lipomas. In 28 patients, the symptoms presented progressively, ranging from 1 month to a maximum of 240 months. We found only one case of a patient with acute presentation and another patient with acute worsening of chronic weakness due to trauma. Atraumatic posterior interosseous nerve lesions are frequently secondary to forearm lipomas. In the majority of cases, the symptoms will develope progressively. However, in this study, we also report a rare case of a patient presenting with acute posterior interosseous nerve lesion due to a lipoma.

Clinical, Electrodiagnostic, and Ultrasound Findings in 87 Patients With Finger Drop.

The inability to extend the fingers at the metacarpophalangeal and interphalangeal joints leads to finger drop. While wrist drop and foot drop are well recognized, the causes of finger drop are poorly understood. This study describes the clinical, electrodiagnostic (EDX), and ultrasound (US) features in patients with finger drop. This is a retrospective study of 87 patients presenting with finger drop and referred for EDX studies during the past 10 years.We analyzed the clinical picture, EDX data, and US findings.The patients were categorized into global (all five digits) or partial (limited to 1-4 digits) finger drop. Fifty-six(64%) patients had global finger drop, while 31 (36%) had partial finger drop.The frequent cause of finger drop was Parsonage-Turner syndrome (PTS) (29 [33%]), followed by trauma (23 [26%]), cervical radiculopathy (16 [18%]), extensor tendon rupture (four [4%]), and compression/entrapment (two [2%]).In 13 (15%) patients, no cause was identified. A total of 13/16 (81%) patients with cervical radiculopathy and four of the patients with tendon rupture had partial finger drop, while 52/64 (81%) with posterior interosseous nerve (PIN) neuropathy had global finger drop. Of the 16 patients who experienced cervical radiculopathy as the cause of the finger drop, 15 patients had C7 and C8 radiculopathy and one patient had C7 radiculopathy. EDX studies of patients with PTS revealed partial axon loss in 18 (62%) patients, conduction block in eight (28%), and total axon loss in four (14%).Enlarged fascicles were observed by US in 40% of patients with PTS.EDX studies of patients who sustained iatrogenic nerve injury causing finger drop demonstrated total axon loss in six (46%) patients, partial axon loss in four (31%), demyelination in two(15%), and conduction block in two (15%). PIN neuropathy is the most common cause of finger drop, however, lesser-known causes such as cervical radiculopathy and extensor tendon rupture should also be considered.Global finger drop is suggestive of PIN neuropathy, while partial finger drop occurs more often in cervical radiculopathy and tendon rupture.EDX and US studies provide valuable information for localizing the lesion site and may reveal the cause of the finger drop.

Blood pressure cuff–induced radial nerve palsy following minimally invasive lateral microdiscectomy: illustrative case

BACKGROUND The authors describe a rare case of transient postoperative wrist and finger drop following a prone position minimally invasive surgery (MIS) lateral microdiscectomy. OBSERVATIONS Hand and wrist drop is an unusual complication following spine surgery, especially in prone positioning. The authors’ multidisciplinary team assessed a patient with this complication following MIS lateral microdiscectomy. The broad differential diagnosis included radial nerve palsy, C7 radiculopathy, stroke, and spinal cord injury. Given the patient’s supinator weakness, intact pronation and wrist flexion, and transient recovery within 4 weeks, the most likely diagnosis was radial nerve neuropraxia secondary to ischemic compression. After careful consideration of the operative environment and anatomical constraints, the patient’s blood pressure cuff was found to be the most probable source of compression. LESSONS Blood pressure cuff–induced peripheral nerve injury may be a source of postoperative radial nerve neuropraxia in patients undergoing spine surgery. Careful considerations must be given to the blood pressure cuff location, which should not be placed at the distal end of the humerus due to higher susceptibility of peripheral nerve compression. Spine surgeons should be aware of and appropriately localize postoperative deficits along the neuroaxis, including central versus proximal or distal peripheral injuries, in order to guide appropriate postoperative management.

Acute Radial Compressive Neuropathy: The Most Common Injury Induced by Japanese Rope Bondage.

Japanese rope bondage (RB), or Shibari, is an art form involving the voluntary and aesthetic binding of a person with a rope, which may result in compression injuries to peripheral nerves. To investigate the nature and extent of nerve injuries associated with this practice, we conducted a survey of four experienced RB practitioners (riggers) and participants who were willing to share their experiences of injury. Injuries presented acutely and immediately following full-body suspensions, with a total of 10 individuals (16 injuries) identified with damage to the radial, axillary, or femoral nerves. Notably, the radial nerve was the most commonly affected structure in our patient cohort, with 90.0% of individuals experiencing an injury at this level. We present a rare case of acute repeated compression of the radial nerve during full-body suspension RB. A 29-year-old female was suspended for 25 minutes using a 6-mm jute rope, resulting in wrist and finger drop, as well as reduced sensation in the left hand. Analysis revealed a 77.3% conduction block in the upper arm segment. Improvement was observed after three months, fully achieved after five months. Seventeen months later, re-compression of both radial nerves occurred during a similar suspension lasting 8-10 minutes. Improvement occurred after one week, fully achieved after four weeks. The third compression episode occurred three years later, lasting five minutes, with full recovery within two minutes. This study focuses on the injury of peripheral nerves, including the radial, axillary, and femoral nerves, namely, acute compression neuropathy induced by Japanese RB. Because the radial nerve is the most frequently injured structure, the findings underscore the significance of recognizing the anatomical course of the radial nerve, particularly its position posteriorly at the distal deltoid tuberosity level, as a means of preventing nerve injury in this region. This knowledge is particularly crucial for individuals engaged in the practice of RB, emphasizing the importance of taking precautions to avoid potential nerve damage.

Morpho-anatomical characterization, gene expression and protein cell wall modifications associated with natural finger drop in bananas

Banana (Musa spp.) is one of the main fruits consumed worldwide. However, finger drop, is a physiological disorder that causes many postharvest problems, which eventually reduces market value and consumer acceptance. Therefore, the objective of the study was to evaluate the anatomical changes that occur in the pedicel rupture area (drop zone) of bananas diploids (BB França) and tetraploid (BRS Pioneira) in three ripening stages. The levels of gene expression involved in the natural ripening process and in the development of finger drop, was also investigated. The accumulation of their mRNAs and those of expansin (EXP1), pectate lyase (PEL1) and xyloglucan endotransglucosylase/hydrolase protein (XTH4) genes already isolated from bananas were measured by quantitative polymerase chain reaction in three ripening stages. BB França presented a higher resistance to finger drop due to the presence of some specific morphoanatomical characteristics, such as larger parenchymal cells and greater deposition of lignin. In contrast, there was degeneration of the pedicel parenchymal tissue of the BRS Pioneira genotype, forming large empty spaces during the ripening of the fruits, mainly in stage 6, which contributed to the finger drop. The diploid BB França is a strong candidate for use in banana breeding programs aimed at fruit drop resistance. This will certainly improve the quality of banana varieties. Moreover, PEL1 proved to be an excellent candidate gene for functional studies of finger drop in bananas.

Combination of 1-MCP and modified atmosphere packaging (MAP) maintains banana fruit quality under high temperature storage by improving antioxidant system and cell wall structure

Green-ripe disorder often occurs when banana fruit (Musa AAA group) ripen at high temperature above 25 °C. In this study, the effect of modified atmosphere package (MAP) + 1-methylcyclopropene (1-MCP) treatment on the shelf-life quality of banana after high temperature storage was studied. The results showed that 300 nL L-1 1-MCP treatment combined with MAP could prevent the occurrence of green-ripe disorder in banana stored at high temperature, reduce ethylene production and respiration, then delay senescence and ripening, and reduce disease incidence and finger drop of fruit. Further analysis showed that the combined treatment decreased the content of reactive oxygen species (ROS) and enhanced the activity of defense-related enzymes and antioxidants. By inhibiting the activity of cell-degrading enzymes, the treatment increased lignin and cellulose content and maintained cell wall integrity. In addition, the treatment regulated the contents of endogenous hormones indole-3-acetic acid and abscisic acid, thus delaying the softening of fruit. This work provides a theoretical foundation for the storage and transportation of banana fruit at high temperature.

Finger Drop: Cervical Radiculopathy, Peripheral Nerve Lesion, or Multifocal Neuropathy? A Case Report

Background Posterior interosseous nerve (PIN) lesions can result in finger drop. Multifocal neuropathy (MFN) occurs when a primary nerve disorder predisposes the nerve to further injury. Case Presentation A 69-year-old male presented with left-handed weakness and left-sided pain of the neck, upper trapezius, and medial scapular border 4 weeks after an asymptomatic fall. Findings regarding proximal pain were consistent with cervical radiculopathy (CR). Distal weakness indicated a PIN lesion: spared sensation/supination, limited finger extension, and radial deviation upon wrist extension. MFN was considered based on history/presentation. The care team included a physical therapist, a neurosurgeon, and a hand therapist. Outcome and Follow-up Resolution of CR pain occurred at 1 month; finger extension/grip strength improved at 3 months but was less than anticipated. Discussion With neurogenic weakness, one needs to consider central- and peripheral-mediated origins, MFN contributions, and appropriate referrals. JOSPT Cases 2022;2(2):112–116. doi:10.2519/josptcases.2022.10601

Motor Neuron Disease P-MN003. Improvement of progressive distal bimelic hirayama disease after surgery: A case report

Introduction . Hirayama disease, a benign muscular atrophy of the distal upper extremity, is a rare cervical myelopathy usually characterized by slowly progressive weakness of one hand (monomelic amyotrophy). The pathognomonic finding is a forward-shifted spinal cord during neck flexion by magnetic resonance imaging (MRI), as in this young Thai man with rapidly progressive weakness and muscle atrophy in the bilateral distal upper extremities. In this report, we describe a 16-year-old man who had finger drop then rapidly progressive weakness and wasting of both hands without pain for 6 months, electrophysiological evidences of motor neuronopathy. He was diagnosed as progressive distal bimelic type of Hirayama disease by a neurologist before getting MRI. Radiological findings showed normal study in neutral position but during neck flexion showed cervical compression and venous plexus engorgement dorsal to thecal sac. After three months without improvement by neck collar he underwent surgery to prevent flexion. We will provide detail of clinical findings. electrophysiological findings, interesting radiological findings and detail of operation. Results . There were improvements of muscle power of both hands and muscle wasting at 3 months postoperatively. Conclusion . Although Hirayama disease is benign in nature and frequently self-limiting but radidly progressive weakness in some cases may have benefit from surgery to prevent neck flexion.

P-PN036. Loss of function mutation in HINT1 gene presenting with neuromyotonia and hereditary neuropathy

Introduction. Histidine Triad Nucleotide binding protein 1 (HINT1) also known as Protein kinase C inhibitor 1 (PRKCNH-1); Protein kinase C interacting protein 1 (PKCI-1), mapped to chromosome 5q31, is a purine phosphoramidase homodimer and is ubiquitously expressed. HINT1 is a tumour suprresor gene and is involved in several apoptotic pathways. Biallelic variants in the HINT1 gene are known to cause Neuromyotonia with Axonal Neuropathy (NMAN). Zimon et al. have identified 8 HINT1 variants in 33 families of NMAN. Results. A 13-year-old male child, born of consanguineous parentage; presented for the first time in 2018 with of bilateral foot drop of 2 years duration. This was followed one and half year later by bilateral forearm and hand muscle weakness in the form of finger and wrist drop with ulner deviation of the wrist. Hyperpigmentation of the knuckles was noted on the examination. Investigations were negative for screening of inborn errors of metabolism by Tandem mass spectrometry. His serum vitamin B12 level was 692 pg/ml (180-914 pg/ml). ENMG demonstrated neurogenic myotonia. NGS of the proband reported a pathogenic start-loss variation c.3G>C_NM005340.7 (p.Met1Ile) in the HINT1 gene aligned to human reference genome (GRCh37/hg19). The variant is not reported in the ClinVar and the Human gemone mutation (HGMD) databases. A variant at c.2T>C has been reported as likely pathogenic for NMAN in the ClinVar database. The variant is reported as damaging by SIFT, possibly damaging by PolyPhen2, and disease causing by MutationTaster2. CADD score is 24. The variant is not reported in gnomAD, 1000 genome and ExAC population frequency databases. Conclusion. Rare genetic causes of CMT are important contributions to the full allelic spectrum of the disease. Here we report an ultra-rare NMAN case of Indian origin; mediated by a novel, pathogenic, biallelic start-loss variant in the HINT1 gene.

Finger drop sign as a new variant of acute motor axonal neuropathy.

We propose the finger drop sign as a new clinical variant of acute motor axonal neuropathy (AMAN) defined by immunological and radiological evidence. We identified eight consecutive patients who had AMAN. All of them developed prominent involvement of the finger extensors. We performed magnetic resonance imaging (MRI) of the extremity muscles and serological assays for antiganglioside antibodies and Campylobacter jejuni. Patients with AMAN showed characteristic and a markedly sustained weakness of the finger extensors with a distinctive pattern of the finger drop sign. Limb MRI revealed unevenly distributed abnormal signals in the muscles mainly innervated by the posterior interosseous nerve. All tested patients showed positivity for immunoglobulin G antibody against ganglioside complex of GM1 and phosphatidic acid. A pathophysiological understanding of this unique syndrome can provide further insight into antiganglioside-antibody-mediated axonal injury in Guillain-Barré syndrome.

EVALUATION OF TENDON TRANSFER FOR RADIAL NERVE PALSY

ABSTRACT Background: Radial nerve palsy had disabling effect on hand function, leads to loss of power grip due to lost extension. Many surgical procedure was described to restoring function, tendon transfer is an important option due to bad reputation of nerve repair. The donor site from muscle supplied by the median and ulnar nerves. Aim of work: Evaluation of different methods of tendon transfer for management of wrist and finger drop in radial or PIN palsy. Patient and Methods: 20 patients with radial or PIN palsy. Presented with post traumatic injury, 14cases in the arm with total radial nerve, 6cases in forearm with PIN. Various techniques of tendon transfer were used including FCU transfer, FCR transfer, and FDS transfer to the EDC. In cases with high radial injury, PT to ECRB transfered to restore wrist extension and palmaris for thumb extension. Results: This study included 20patients in three groups, the FCR group including 9patients, the FCU group including 6patients, and the FDS group including 5patients. In FCR group, 6patients(66.6%) were excellent, 2patients(22.2%) were good and 1patient(11.1%) was fair. In FCU group, 3patients(50%) were excellent, 2patients(33.3%) were good and 1patient(16.7%) was fair. In FDS group, 3patients(60%) were excellent, 1patient(20%) was good and 1patient(20%) was fair according to an objective evaluation. Conclusion: The tendon transfer is a very successful treatment for irreversible radial nerve paralysis, many techniques of tendon transfer were prescribed for treatment of wrist and finger drop. The FCR transfer is the best option for restoration of hand extension Because it preserves the important moment of flexion and ulnar deviation of the wrist which is important for power grip in working men and it's transfer is easier, quicker and associated with less intra-operative dissection and less donor site morbidity.

Finger drop: A major concern for storability, post harvest quality and marketing of banana

Physico-chemical changes that occur during ripening affect the post harvest quality and shelf life of banana fruits. Finger drop is a major post harvest physiological disorder that deteriorates the quality of banana particularly in cultivars having genome “A”. Enzyme activity was found responsible for this disorder. Various practices including application of chemicals and growth regulators have been adopted to check this disorder and to improve quality of banana during storage. Research works pertaining to the cause, symptoms and prescribed solutions have been reviewed in this paper.

Effects of Pre-harvest Application of 1-Methylcyclopropene (1-MCP) on the Postharvest Quality of 'Cavendish' Banana (Musa cavendishii)

Several researches have been conducted to investigate the effect of 1-MCP in bananas, but inconsistencies in the results have been reported. Additionally, the effectiveness of 1-MCP is governed by various factors, such as cultivar, fruit maturity, concentration, time of exposure, and method of application. In this study, the effect of pre-harvest methods " Stalk End Immersion (SEI), bunch spraying (BS), Combination (SEIBS), and Control” of 1-MCP application was determined by observing the postharvest quality of Cavendish bananas, such as peel yellowing, sensory firmness, visual quality, weight loss, degree of shriveling, fruit finger drop, organoleptic attributes, chemical properties, and disease incidence. Results revealed that pre-harvest 1-MCP (aqueous solution dosage of 400 nL/L) application through SEI and SEI-BS methods significantly retarded the peel color change up to 7 days of storage and prolonged the banana's shelf life for up to 19 days under ambient storage conditions. SEI-BS delayed fruit softening (for 15 days) and maintained visual quality (for 19 days) compared to SEI. Fruits treated with 1-MCP through SEI-BS had lesser accumulated weight loss, lower degree of shriveling, and reduced finger drop incidence compared to BS and SEI methods conducted separately. In terms of cost efficiency, BS had lower cost compared to SEI and SEI-BS methods, while the chemical properties, organoleptic attributes, and disease incidence (crown discoloration, crown rot/mold, and banana anthracnose) failed to show any significant difference among pre-harvest methods.

P17-S Repeated compression radial neuropathies caused by rope bondage

Rope bondage or shibari represents voluntary binding of a person with a rope and can lead to compression injury to peripheral nerves. We present a case of the radial nerve injury in suspension. A 29-year-old woman with a BMI of 17.5 was tied up with a 6-mm jute rope and suspended by the upper limbs, torso and hips for 25 min. The rope was placed in the middle third of the brachium. On removing the rope, she had a left wrist and a finger drop with decreased posterolateral hand sensation. Radial nerve conduction studies was performed on day 48. Compound muscle action potential was recorded from extensor digitorum communis. Conduction velocity was reduced to 19 m/s in the spiral groove segment, conduction block was 95.3%. Sensory conduction studies were normal. Clinical improvement began after 3 months with complete improvement after 5 months. Seventeen months after the recovery, this patient re-compressed both radial nerves after a similar suspension lasting about 8 min. The improvement began after one week and completed after 4 weeks. The third compression episode, that occurred three years after the first compression, lasted five minutes with clinical recovery in two minutes later. Nerve conduction studies demonstrated normal motor and sensory conduction velocities in radial, median, ulnar, peroneal, tibial and sural nerves. A high-resolution ultrasound examination showed a slight increase in the cross-sectional area of the left radial nerve in the spiral groove compared to the opposite side. Conclusion Rope bondage often causes injury to the radial nerve.

Progressive Radial Nerve Entrapment Resulted in Finger Drop: A Case Report

Introduction: Posterior interosseous nerve (PIN) palsy gives rise to various symptoms. The PIN due to lipoma is rare. Here, we report a case of progressive loss of finger extension due to a giant painless parosteal lipoma. Case Presentation: A 52-year-old patient with progressive weakness of finger extension with diagnosis of posterior interosseous nerve (PIN) palsy was referred to our clinic. Electrophysiological studies showed a right PIN neuropathy at the level of the forearm. The patient had no history of trauma of the hand. The patient underwent surgery for tumor removal and nerve decompression. The loss of finger extension due to PIN palsy gradually recovered after tumor removal and the nerve recovered from the motor deficits. The patient showed no recurrence of motor deficit after the surgery in the follow-up. Conclusions: Since PIN palsy may arise from lipoma early surgical exploration and the excision of deep-seated lipoma in the proximal forearm is recommended in order to avoid permanent damage to PIN or other branches of the radial nerve.

Tuberculous tenosynovitis presenting as finger drop: a case report and a systematic review of the literature

Tuberculous tenosynovitis presenting as finger drop: a case report and a systematic review of the literature

Temperature Modifications during Storage to Overcome Weak Neck Disorder in Banana (cv. Rasthali) using α- Amino Isobutyric Acid

Climacteric fruits respond well to the environmental temperature, because the respiration rate and ethylene production would vary according to the temperature. Banana fruit possess very short postharvest life, prone to injuries and postharvest disorders like weak neck because of the climacteric and perishable nature of the fruit. Hence an attempt was made with α- Amino isobutyric acid (AIB) to study the weak neck disorder of the banana under cold storage condition to increase the postharvest life. AIB is an ethylene biosynthesis inhibitor which inhibits the ethylene synthesis by inhibiting ACC oxidase enzyme. Banana fruits were treated with different AIB concentrations (50, 100, 150, 200 ppm along with control) and spraying methods (Dipping and Spraying). AIB @ 150 ppm dipped for 5 minutes showed decreased finger dislodge from the hands (50-70 per cent at 11th day after treatment) compared to control fruits (100 per cent at 9th day after treatment). On comparing AIB with ethylene inhibitor (1-MCP) and chemicals (Hexanal and calcium chloride) under cold and ambient storage condition, AIB showed better result with reduced finger drop. At 11th day of cold storage AIB treated fruits exhibited minimum finger drop of 50 per cent followed by 1-MCP vaporization with finger drop percentage of 60 and control fruits reported the maximum number of finger drop (90 per cent). Under ambient condition at 7th day itself the AIB treated fruits showed 60 per cent finger drop. Hence from the present study, the external temperature would alter the storage life of the fruits which may be an important factor and noted for further improvement of postharvest life of fruits by storing under required temperatures and minimizing the postharvest losses. .

Reversible reddish skin color change in a patient with compressive radial neuropathy

BackgroundThe motor and sensory symptoms caused by compressive radial neuropathy are well-known, but the involvement of the autonomic nervous system or the dermatologic symptoms are less well known. We report an unusual case of compressive radial neuropathy with reversible reddish skin color change.Case presentationA 42-year-old man was referred for left wrist drop, finger drop and a tingling sensation over the lateral dorsum of the left hand. Based on clinical information, neurologic examinations and electrophysiologic studies, he was diagnosed with compressive radial neuropathy. In addition, a reddish skin color change was observed at the area of radial sensory distribution. After two weeks of observation without specific treatment, the skin color had recovered along with a marked improvement in weakness and aberrant sensation.ConclusionsCompressive radial neuropathy with a reversible reddish skin color change is unusual and is considered to be due to vasomotor dysfunction of the radial autonomic nerve. Compressive radial neuropathy is presented with not only motor and sensory symptoms but also autonomic symptoms; therefore, careful examination and inspection are needed at diagnosis.