introduction: different oral lesions have clinical characteristics which in some cases are similar. therefore, in these cases histopathological examination for correct diagnosis is necessary. the aim of this study was to evaluate the compatibility rate of clinical and histopathological diagnosis of oral lesions in zahedan school of dentistry. methods: in this retrospective study, determination ...

background spitz nevus is an infrequent acquired melanocytic nevus. there is still a challenge for dermatopathologists in distinguishing spitz nevus from malignant melanoma particularly in adults since there is no immunohistochemistry or molecular markers which differentiate spitz nevus from melanoma. objectives the aim of this study is to make clear what clinico-histopathological features of s...

A number of candidate histopathologic factors show promise in identifying stage II colorectal cancer (CRC) patients at a high risk of disease-specific death, however they can suffer from low reproducibility and none have replaced classical pathologic staging. We developed an image analysis algorithm which standardized the quantification of specific histopathologic features and exported a multi-...

A 43-year-old man developed decreased vision in the right eye that had persisted for seven years. Under slit lamp examination, corneal clouding was noted with normal endothelium and ocular structure. From the clinical evidence, we suspected that the patient had congenital hereditary stromal dystrophy (CHSD). He and his family underwent a genetic analysis. Penetrating keratoplasty was conducted,...

background: behçet’s disease (bd) is a multisystemic inflammatory vasculitis of unknown etiology, and vasculitis being its major pathological feature. objectives: we studied the prevalence of microembolic signals (mes) in patients with diagnosis behçet's disease. we also tried to determine the frequency of mes in bd patients with or without neurological involvement. materials and methods: ...

malignant peripheral nerve sheath tumor (mpnst) is a rare malignant tumor that develops either from a preexisting neurofibroma or de novo. the cell of origin is believed to be the schwann cell and possibly other nerve sheath cells. in this report, we describe a rare case of mpnst that arise from the socket of second left maxillary molar that has been already extracted in a young man. he was ref...

Background and purpose: Radially oriented hypointense stripes in hyperintense cerebral white matter are recognized on T2-weighted images of certain lysosomal storage disorders. We compared in vivo and postmortem MR imaging findings with histopathologic findings in three patients with metachromatic leukodystrophy (MLD), globoid cell leukodystrophy (GLD) and infantile GM1 gangliosidosis (GM1) to ...

BACKGROUND Cutaneous mucinoses are a heterogeneous group of disorders characterized by an abnormal amount of mucin in the skin. However, the pathomechanism of an excessive mucin deposition in the skin is still unknown. Eczematous dermatitis is sub-classified histologically into acute, subacute, and chronic variants. The characteristic histopathologic findings for chronic eczema are variable. Ho...

introduction: the purpose of this study was to compare the histopathologic reaction of four suturing materials: silk, polyvinylidene fluoride (pvdf), polyglycolic acid, and catgut in the oral mucosa of albino rabbits. materials and methods: the twenty-one male mature albino rabbits which were used in this study were randomly divided into three groups of seven each. silk, pvdf, polyglycolic acid...

Histopathologic diagnosis relies on simultaneous integration of information from a broad range scales, ranging nuclear aberrations ($\approx \mathcal{O}(0.1{\mu m})$) through cellular structures \mathcal{O}(10{\mu to the global tissue architecture ($\gtrapprox \mathcal{O}(1{mm})$). To explicitly mimic how human pathologists combine multi-scale information, we introduce family multi-encoder FCNs...