Abnormal Shape Research Articles

New-Generation Ektacytometry Study of Red Blood Cells in Different Hemoglobinopathies and Thalassemia

Next-generation ektacytometry provided by the osmoscan module of the Laser Optical Rotational Red Cell Analyser (LoRRca) MaxSis is, so far, one of the best complementary diagnostic tools for congenital rare anaemias due to red blood cell defects. Osmotic gradient ektacytometry (OGE) is currently considered the gold standard for the diagnosis of red cell membrane disorders, especially hereditary spherocytosis (HS). Impairment of red cell deformability, leading to a decrease in red cell survival rate, is the common trait of hereditary haemolytic anaemias; in general, it is the consequence of an abnormal cell shape, increased rigidity or dehydration. Up to now, the next-generation ektacytometry has been mainly used for the differential diagnosis of red blood cell membranopathies, but experience with structural hemoglobinopathies and thalassemia is still scarce. However, recently, many new forms of therapy are being developed for the treatment of hemoglobinopathies, particularly sickle-cell disease and β-thalassemia; clinical interest in ektacytometry is increasing and should be further explored. Here, we have evaluated the OGE profiles provided by the osmoscan module of the LoRRca ektacytometer in 96 patients with different hemoglobinopathies, both structural and thalassemia, with the aim of analysing their usefulness for the early diagnosis of these disorders either individually or in co-inheritance with other hereditary RBC defects. In addition, this study aims to improve our knowledge of the contribution of red cell deformability, osmotic fragility and intracellular viscosity to the physiopathology of haemolysis, especially when these disorders are a cause of rare anaemia. From this study, we conclude that the osmoscan profile provides complementary information on red cell deformability and hydration homeostasis that may contribute to the better understanding of the physiopathology of decreased red cell survival and hemolysis which is present in some patients.

Predictability of Nailfold Capillaroscopic Score in Diagnosing Retinopathy in Patients with Type 2 Diabetes Mellitus and its Utility as a Non-Invasive Tool for Differentiating from those Not Having Retinopathy: A Pilot Observational Cross-Sectional Analytical Study.

Diabetes mellitus (DM) is a chronic hyperglycaemic state associated with microvascular structural alterations. Nailfold capillaroscopy (NFC) is an in vivo study of microvascular circulation. This study aimed to investigate the diameters of capillary loops and morpho-structural changes using a handheld dermatoscope in patients with type 2 DM (T2DM) with and without diabetic retinopathy (DR) and to establish nailfold capillary changes and NFC score as a non-invasive method to identify microvascular complication in T2DM patients. A cross-sectional observational study was conducted in AIIMS Rishikesh for 6 months from August 2022 to February 2023. Our study participants were 100 adults more than 18 years of age diagnosed with T2DM, based on the American Diabetes Association (ADA) criteria. All patients were evaluated thoroughly for the presence of microvascular complications in the form of retinopathy. Based on this, they were divided into two groups-group 1 (T2DM with retinopathy) and group 2 (T2DM without retinopathy). Both groups were further subdivided into three subgroups based on haemoglobin A1c (HbA1c): the first group with HbA1c <7%, the second group with HbA1c 7-8.9% and the third group with HbA1c >=9%. For all the study participants, a detailed NFC was done for all 8 fingernails (excluding the thumb), using a handheld dermatoscope. Abnormal capillary shapes (ACS) were recorded by semi-quantitative score (NFC score). A significant association was seen in capillary density (loops/mm) (5.83 ± 0.72 in the DR group and 6.3 ± 0.89 in the no-DR group) (P value = 0.005), capillary density (loops/3 mm) (P value = 0.005), total number of microhaemorrhages/3 mm (P value < .0001), total number of giant capillaries/3 mm (P value = 0.0004), total number of avascular areas/3 mm (P value = 0.0005), enlarged capillaries/3 mm (P value = 0.002), tortuous capillaries/3 mm (P value < .0001), abrogated/bushy capillaries/3 mm (P value = 0.004), number of fingers involved excluding the thumb (P value < .0001) and total nailfold capillaroscopic score (P value < .0001) between the two groups, one with DR and another without DR. Furthermore, the proportion of patients with abnormal nailfold capillaroscopic findings, abnormal NFC score, was significantly higher in patients with DR as compared to patients without DR (51.85% vs 4.35%, respectively) (P value < 0.0001). Our results suggest that NFC could possibly be used as an adjunctive tool in diabetics for diagnosing or monitoring microvascular complications with total NFC score being the significant predictor of DR at a cut-off point of >0 with the area under the curve (AUC) of 0.745 for correctly predicting DR.

Urinary Diagnostic Cytology Beyond the Research of Neoplastic Cells: Usefulness of Erythrocyte Morphology Evaluation to Recognize Microhematuria Source.

Urine cytology is useful to diagnose urinary neoplasms, whereas its role in the study of microhematuria is debatable. Usually, standard urinalysis (dipstick test and sediment examination with bright field microscope) detects the presence of microhematuria, but only urinalysis with phase-contrast microscopy (PCM) (dipstick test and sediment examination with PCM) allows the observation of red blood cell (RBC) morphology and identify their source. Usually glomerular diseases show RBCs with morphological alterations in high percentages, whereas on urologic bleeding, RBCs are rather homogeneous without morphological alterations. We compare, for the first time, RBC morphology observed in urine cytology and in urinalysis with PCM, to verify whether urinary cytology allows the recognition of the source of bleeding. A total of 60 patients who had performed both urine cytology and urinalysis with PCM for microhematuria, detected with standard urinalysis, were investigated. Urine cytology showed RBCs and were negative for neoplastic cells or for inflammatory events. Urine samples were processed with the automated method ThinPrep®. RBCs with abnormal and variable shapes were defined as deformed. RBCs of the same spherical shape were defined as non-deformed. Fifty-six urine cytology with RBCs deformed were confirmed in 55 urinalysis with PCM. One case showed RBCs non deformed in urine cytology and in urine sediment. Overall, agreement, between RBC morphology in urine cytology and urinalysis with PCM, was found in 56/60 cases (93%). Therefore, since sediment examination with PCM is available in only few laboratories, we propose that cytopathologist always reports, in urine cytology, any morphological abnormalities of RBCs in order to provide information of the hematuria origin and correctly refer the patient to a nephrologist rather than a urologist.

Use of Ultrasonography in Diagnosis of Medial Compartment Disease of the Elbow in Dogs.

The objective of this prospective study was to evaluate the use of ultrasonography in the diagnosis of medial coronoid process disease in unclear cases. Fifteen elbows (on thirteen dogs) for which radiography and computed tomography did not lead to a clear diagnosis of medial coronoid process disease were included. On each elbow, ultrasonography was performed with a high frequency linear transducer (12-18Hz). Then, arthroscopic examination of the joint was performed by a surgeon who was unaware of ultrasonographic findings to confirm medial coronoid process disease. At least one ultrasonographic lesion was detected in 13 out of 15 elbows. The main reported ultrasonographic lesions were joint effusion (10/15 elbows) and an abnormal shape of the medial coronoid process (irregular, ill-defined or fragmented) (9/15). Ultrasonography can be a helpful additional diagnostic tool to confirm medial coronoid process disease of the elbow joint before performing arthroscopy in unclear cases. Further studies will be needed to evaluate the use of higher frequency transducers and determine if it could improve the diagnostic value of ultrasonography.

Cytotoxic and Antileishmanial Effects of the Monoterpene β-Ocimene.

Leishmaniasis is a group of infectious-parasitic diseases with high mortality rates, and endemic in many regions of the globe. The currently available drugs present serious problems such as high toxicity, costs, and the emergence of drug resistance. This has stimulated research into new antileishmania drugs based on natural products and their derivatives. β-Ocimene is a monoterpene found naturally in the essential oils of many plant species which presents antileishmanial activity, and which has not yet been evaluated for its potential to inhibit the etiological agent of leishmaniasis. The aim of this work was to evaluate the activity of β-ocimene against Leishmania amazonensis, its cytotoxicity, and potential mechanisms of action. β-Ocimene presented direct activity against the parasite, with excellent growth inhibition of promastigotes (IC50 = 2.78 μM) and axenic amastigotes (EC50 = 1.12 μM) at concentrations non-toxic to RAW 264.7 macrophages (CC50 = 114.5 µM). The effect is related to changes in membrane permeability and resulting abnormalities in the parasitic cell shape. These were, respectively, observed in membrane integrity and atomic force microscopy assays. β-Ocimene was also shown to act indirectly, with greater activity against intra-macrophagic amastigotes (EC50 = 0.89 μM), increasing TNF-α, nitric oxide (NO), and reactive oxygen species (ROS), with lysosomal effects, as well as promoting decreases in IL-10 and IL-6. Against intra-macrophagic amastigote forms the selectivity index was higher than the reference drugs, being 469.52 times more selective than meglumine antimoniate, and 42.88 times more selective than amphotericin B. Our results suggest that β-ocimene possesses promising in vitro antileishmania activity and is a potential candidate for investigation in in vivo assays.

Association of Carotid Atherosclerosis With Hearing Loss

To describe the association between midlife carotid atherosclerosis and late-life hearing loss among participants in the Atherosclerosis Risk in Communities (ARIC) study. For this cross-sectional study and temporal analysis of a cohort within the ongoing ARIC prospective cohort study, participants were recruited from 4 communities in the US. The analysis evaluated information on mean carotid intima-media thickness (cIMT), from visit 1 (1987-1989) to visit 4 (1994-1996), carotid plaque presence at visit 4, and audiometric data from visit 6 (2016-2017). The cIMT measures were calculated from ultrasonography recordings by trained readers at the ARIC Ultrasound Reading Center. At each visit, cIMT was computed as the average of 3 segments: the distal common carotid, the carotid artery bifurcation, and the proximal internal carotid arteries. Presence of carotid plaque was determined based on an abnormal wall thickness, shape, or wall texture. Audiometric 4-frequency pure tone average (PTA) was measured and calculated for the better-hearing ear and modeled as a continuous variable. Linear regression estimated the association between cIMT and carotid plaque with hearing, adjusting for age, sex, race and study center, education level, body mass index (calculated as weight in kilograms divided by height in meters squared), smoking status, hypertension, cholesterol levels, diabetes, and exposure to occupational noise. Missing data (exposure and covariates) were imputed with multiple imputation by chained equations. Data analyses were performed from April 6 to July 13, 2022. Hearing loss assessed using 4-frequency (0.5, 1.0, 2.0, and 4.0 kilohertz) PTA for both ears and carotid plaque at visit 4 and mean cIMT from visit 1 to visit 4. Among a total of 3594 participants (mean [SD] age at visit 4, 59.4 [4.6] years; 2146 [59.7%] female; 819 [22.8%] Black and 2775 [77.2%] White individuals), fully adjusted models indicated that an additional 0.1 mm higher mean cIMT was associated with 0.59 dB (95% CI, 0.17 to 1.02 dB) higher PTA. Compared with participants without carotid plaque, plaque presence was associated with 0.63 dB (95% CI, -0.57 to 1.84 dB) higher PTA. The findings of this cross-sectional study with temporal analyses of a cohort with the ongoing ARIC study found that subclinical atherosclerosis in midlife was associated with worse hearing in older adulthood. Prevention and control of carotid atherosclerosis during middle age may positively affect the hearing health of older adults.

What are the ‘shape friendly’ locations to sell misshapen tomatoes? The effect of point of purchase on consumers’ abnormality perception and probability to buy

The present study endorses the point of purchase (POP) as a ‘decision point’for the distribution of misshapen fruits and vegetables (FVs) and a contributor to reducing food waste. We have explored the influence of POP type on consumer perceptions of tomato shape abnormality and its purchase probability, and the moderating role of the actual tomato shape abnormality level. Two online surveys questioned a total of 1021 Romanian and British consumers. The results show that consumers perceive misshapen tomatoes as ‘least misshapen’ and ‘most likely to be bought’ in fresh markets (Romania) or the organic stand of the supermarkets (UK). This study provides managerial recommendations on the selection of point of sale for misshapen fresh FVs with the aim of addressing the problem of food waste.

Influence of Long-Period Stacked Ordered Phases on Inductive Impedance of Mg-Gd-Y-Zn-Zr-Ag Alloys

In this paper, the influence of long-period stacked ordered (LPSO) phases on the electrochemical impedance spectroscopy (EIS) of a Mg-Gd-Y-Zn-Zr-Ag alloy in 0.9 wt.% NaCl was investigated. The Mg-6Gd-3Y-1Zn-0.5Zr-0.3Ag (wt.%) alloy samples with and without LPSO phases in the grain interior (HOMO and LPSO, respectively) were prepared using different heat treatments. The EIS results showed that both the HOMO and LPSO samples' Nyquist diagrams contained two inductive loops. However, in the Nyquist plots of the LPSO samples, the inductive loops at 1.71-0.67 Hz appeared in the first quadrant rather than the fourth quadrant. Analysis of the fitting parameters illustrated that the abnormal shape of the inductive loops is related to greater values of the surface film capacitance Cf and double layer capacitance Cdl in the LPSO samples. Further investigations through corrosion morphology observation indicated that the greater values of Cf and Cdl in the LPSO samples resulted from the existence of intragranular LPSO phases that created more film-free areas. The above results show that a better understanding of the relationship between the inductive impedance and corrosion morphology of a Mg-6Gd-3Y-1Zn-0.5Zr-0.3Ag alloy in 0.9 wt.% NaCl solution was attained.

Stress effect on the mandibular dental arch by mentalis muscle over activity, finite element analysis.

The perioral muscles postural and functional abnormality should be clearly evaluated. The influence of the abnormal function of mentalis muscle on the shape and posture of the mandible was evaluated using a finite element approach. Finite element analysis was used to create a three-dimensional representation of a human mandible that represents a dry normal mandible with teeth (33-36 gm/cm2). Pressures were applied directly to the labial surface of the mandible's lower anterior dento-alveolar structure reflecting the normal lips muscle function. While on abnormal swallowing pattern, lip muscle force (300 gm\cm2) had been assumed. Shape and postural abnormality of the mandible with malocclusion particularly at the anterior dentoalveolar and basal bone region in sagittal direction as well as inward pressure on the mandibular posterior region. Abnormal perioral muscle function throughout growth and development may result in a shape and postural abnormality of the mandible and a companying malocclusion.

Niepłodność – epidemiologia, etiopatogeneza, diagnostyka

Infertility is a disease of the male or female reproductive system defined by the failure to achieve a pregnancy after 12 months or more of regular unprotected sexual intercourse. Infertility affects millions of people and has an impact on their families and communities. In the female reproductive system, infertility may be caused by a range of abnormalities of the ovaries, uterus, fallopian tubes, and the endocrine system, among others. In the male reproductive system, infertility is most commonly caused by problems with the ejection of semen, absence or low sperm count, or abnormal shape and movement of the sperm. Fertility care encompasses the prevention, diagnosis and treatment of infertility. Equal and equitable access to fertility care remains a challenge in most countries.

Cryotolerance of in vitro matured and vitrified bovine oocytes supplemented with L-carnitine and niacin

The study was designed to compare the cryotolerance of in vitro matured bovine oocytes, supplemented with L- carnitine and niacin in maturation media, vitrified using cryoloop technique. Bovine ovaries were collected from the slaughterhouse and cumulus-oocyte complexes (COCs) were retrieved by follicular aspiration. Culture quality COCs were selected and randomly allocated to three different experimental groups. Group I oocytes (control), were subjected to in vitro maturation (IVM) in basic maturation media, while Group II and III oocytes (experimental groups) were matured in media supplemented with L- carnitine (0.6 mg/mL) and niacin (400 μM/mL), respectively. The mean per cent of cumulus cell expansion was 80.92 ±0.02, 79.18 ± 0.03 and 87.95 ±0.02 for Group I, II and III, respectively. A significantly high (p &lt; 0.05) cumulus cell expansion could be observed in niacin treated group than L- carnitine, whereas a difference close to being statistically significant (p = 0.057) was noticed between niacin treated and control groups. The matured oocytes were subjected to cryoloopvitrification using dimethylsulfoxide (15%), ethylene glycol (15%) and sucrose (0.05M) as cryoprotectants. The mean survival rate observed in the study was 67.26 ± 0.05, 76.34 ± 0.05 and 79.68 ± 0.03 per cent for Group I, II and III, respectively. Shrinkage of cytoplasm was the most common type of cryodamage observed in all the three groups followed by cracked zona pellucida, abnormal shape and increased peri vitelline space. The survived oocytes were subjected to in vitro fertilisation with no significant difference between the groups in fertilisation rate. The present study revealed the beneficiary effect of supplementing niacin over L- carnitine in maturation media as it improved the maturation and survival rates of bovine oocytes.

Aspirin for the primary prevention of breast cancer: an unforeseen advantage

Aspirin for the primary prevention of breast cancer: an unforeseen advantage

Морфология лейкоцитов периферической крови у пациентов с новой коронавирусной инфекцией (COVID-19)

Introduction. The rapid spread of the COVID-19 pandemic caused by SARS-CoV-2 initially indicated a significant immune system involvement, including peripheral blood leukocytes. Hematologic changes have already been described in the first cases of COVID-19; however, only few studies reported morphological cell abnormalities in peripheral blood smears. The aim of the study was to characterize the morphology of peripheral blood leukocytes in patients with COVID-19 and determine the significance of its changes in the immune system dysfunction and for the disease diagnosis. Materials and methods. We studied blood samples of 30 patients infected by SARS-CoV-2 virus (confirmed with PCR tests) who were treated in Regional Clinical Hospital No. 2 in Vladivostok. Peripheral blood buffy coat samples fixed in osmium tetroxide were embedded in epoxy with subsequent preparation of semithin and ultrathin sections. Results. To the best of our knowledge, it is the first study to show nuclear pathological changes in neutrophils and monocytes in blood buffy coat of the patients with coronavirus infection with light and electron microscopy of peripheral blood. We found cells with abnormal nuclear shape and leukocyte apoptotic degeneration absent in healthy individuals. The identified morphological leukocyte abnormalities should be considered as signs of hyporeactivity of these cells, which indirectly indicate a decrease in their bactericidal potential in COVID-19. At the same time, the secretory degranulation of neutrophils with the release of the contents of the granules into the extracellular space was poorly visualized. We observed smooth plasmalemma of leukocytes with a small number of microvilli involved in phagocytosis and numerous apoptotic leukocytes with reduced phagocytic ability. Conclusion. The detection of morphological abnormalities of circulating leukocytes in patients with COVID-19 is of diagnostic and prognostic value in this pathology. Keywords: blood, neutrophils, monocytes, morphology, COVID-19, SARS-CoV-2, karyopathological changes

Trick or treat? Does cancer fool Schwann cells by mimicking axons to promote metastasis into nerves?

Trick or treat? Does cancer fool Schwann cells by mimicking axons to promote metastasis into nerves?

NLP and oral health information.

NLP and oral health information.

Abnormal Shape of Placenta as a Consequence of Maternal Thyroid Disorders-Does It Leave Any Microscopic Changes?

Introduction: Thyroid disorders are common in the reproductive age group of women and these can cause significant perinatal outcomes.Though the effect of abnormal thyroid hormones on the foetus and its development is established, their effect on the placenta and its contribution towards the effect is not elaborately studied. Aim: To compare the microscopic features of euthyroid placentae with those of mothers with thyroid dysfunction. Materials and Methods: This is prospective observational study wherein placentae received from October 1 ,2017 to March 31, 2019 in the Department of pathology, Karnataka Institute of Medical Sciences, Hubballi, Karnataka, India, were collected, processed and analysed. A total of 539 cases were received for histopathological examination during this period, of these 64 cases had abnormal antenatal thyroid profile. These were compared grossly and microscopically with the control group of 64 euthyroid cases. Results: The total sample of the study comprised of case group(n=64) and control group(n=64), mean age: mean age of the women 26.91±4.1 years. The case group samples included 3 hyperthyroid cases and 61 hypothyroid cases.In the control group, 3 (2.3%) foetuses were dead as compared to 6 (4.7%) foetuses in hypothyroid group and 3 (2.3% of total, 100% of hyperthyroid group) foetuses in hyperthyroid group (p&lt; 0.001). Abnormal shape of the placenta was seen in 1 (0.8%) case in normal group as compared to 3 (2.3%) in hypothyroid group and 1 (0.8%) case in hyperthyroid group (p=0.018). However, there weren’t any significant microscopic changes. Conclusions: Maternal thyroid disorders result in abnormal shape of placenta and hence resulting in foeto-maternal insufficiency and subsequent foetal growth restriction and adverse foetal outcome.

Phenotypic spectrum of patients with Poretti-Boltshauser syndrome: Patient report of antenatal ventriculomegaly and esophageal atresia

Poretti-Boltshauser syndrome (PTBHS) is an autosomal recessive disorder characterized by cerebellar dysplasia with cysts and an abnormal shape of the fourth ventricle on neuroimaging, due to pathogenic variants in the LAMA1 gene. The clinical spectrum mainly consists of neurological and ophthalmological manifestations, including non-progressive cerebellar ataxia, oculomotor apraxia, language impairment, intellectual disability, high myopia, abnormal eye movements and retinal dystrophy.We report a patient presenting with ventriculomegaly on antenatal neuroimaging and a neonatal diagnosis of Type III esophageal atresia. She subsequently developed severe myopia and strabismus with retinal dystrophy, mild developmental delay, and cerebellar dysplasia. Genetic investigations confirmed PTBHS.This report confirms previous reports of antenatal ventriculomegaly in PTBHS patients and documents a so far unreported occurrence of esophageal atresia in PTBHS. We additionally gathered phenotype and genotype descriptions of published cases in an effort to better define the spectrum of PTBHS.

Phytochemical analysis in foamy extract of cucumber (Cucumis sativus L.)

The metabolite profiling of white foamy substance local white cultivar of Cucumber (Cucumis sativus L.) was performed using HR-LCMS. Prominent compounds with MS spectra, peak list, and compound structure were studied. Which pertains to Cucurbitaceae. The cytotoxic activity was studied on onion root tip squash and microscopic evaluation was done. The principal component analysis (PCA) of the analytical data showed the presence of Triterpenes: Cucurbitacin-C (0.8ppm), Cucurbitacin-E (5.53ppm) and Cardiac glycosides: Gitoxigenin (7.76ppm), Strophanthidin (13.79ppm), and Digitoxigenin (2.13ppm) in 10μl of the loaded sample.100 other compounds were identified by accurate mass of Q-TOF/MS and verified by database compounds (IRM calibration). Strophanthidin in the highest concentration in the foamy extract is a significant finding. This study reports the traditional significance of removing white foamy substances for bitterness in cucumber before slicing. The cytotoxic study on onion root tips by photomicrograph study indicates reduction in root growth and chromosomal aberrations, disturbed telophase, anaphase, abnormal cell shape, dissolved chromosomes, membrane damage and nuclear lesions. SAARC J. Agric., 20(2): 145-155 (2022)

Non-Syndromic Craniosynostosis in Children: Scoping Review

Background: Craniosynostosis (CS) is a complex condition consisting of the early fusion of one or more cranial sutures in the intrauterine stage. The affected infant exhibits abnormal head shape at time of birth or shortly thereafter. It can be observed in normal individuals (non-syndromic CS or NSCS) or as a part of a multisystem syndrome. The purposes of the present ar-ticle were to carry out a scoping review on Non-Syndromic CS and to discuss the most important findings retrieved. Material and Methods: The steps of this scoping review were as follows: first, to pose a re-search question; second, to identify relevant studies to answer the research question; third, to select and retrieve the studies; fourth, to chart the critical data, and finally, to collate, summarize, and report the results from the most important articles. Relevant articles published over a 20-year period were identified and retrieved from five Internet databases: PubMed; EMBASE; Cochrane Library; Google Scholar, and EBSCO.Results: Fourteen articles were finally included in the present scoping review. The follo-wing four most important clinical issues are discussed: (I) normal cranial development, clinical manifestations, and pathogenesis of NCSC; (II) clinical evaluation of NCSC; (III) treatment and post-surgical follow-up; and (IV) additional considerations.Conclusions: NSCS may be present with associated head shapes. Multiple early surgical re-constructive options are currently available for the disorder. Pediatric Dentistry practitioners must be familiarized with this condition and form part of a multi-approach health team as those responsible for the opportune oral health care of the affected child.

Research on cassava disease classification using the multi-scale fusion model based on EfficientNet and attention mechanism.

Cassava disease is one of the leading causes to the serious decline of cassava yield. Because it is difficult to identify the characteristics of cassava disease, if not professional cassava growers, it will be prone to misjudgment. In order to strengthen the judgment of cassava diseases, the identification characteristics of cassava diseases such as different color of cassava leaf disease spots, abnormal leaf shape and disease spot area were studied. In this paper, deep convolutional neural network was used to classify cassava leaf diseases, and image classification technology was used to recognize and classify cassava leaf diseases. A lightweight module Multi-scale fusion model (MSFM) based on attention mechanism was proposed to extract disease features of cassava leaves to enhance the classification of disease features. The resulting feature map contained key disease identification information. The study used 22,000 cassava disease leaf images as a data set, including four different cassava leaf disease categories and healthy cassava leaves. The experimental results show that the cassava leaf disease classification model based on multi-scale fusion Convolutional Neural Network (CNN) improves EfficientNet compared with the original model, with the average recognition rate increased by nearly 4% and the average recognition rate up to 88.1%. It provides theoretical support and practical tools for the recognition and early diagnosis of plant disease leaves.