Search Results for: acanthosis

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Histologic Diagnosis of Inflammatory Skin Diseases

Fox-Fordyce disease

…particularly and not in the axilla. Findings histopathologic Fully developed Dilation of infundibula by orthokeratotic cells Acanthosis of infundibular epidermis Spongiosis of infundibular epidermis, including spongiotic vesiculate. Cornoid…

Differential Diagnosis in Dermatopathology

Granular-cell tumor vs. Xanthoma

Pigmented plaques formed by confluence of smooth-surfaced soft papules, some of which may become polypoid, traversed by accentuations of skin folds. This disease has a predilection for intertriginous regions. The condition may develop consequent to…

From the Dermatologikum Hamburg

From the Dermatologikum Hamburg

…planation Rheumatoid neutrophilic dermatitis The section pictured in Figures 2A-P shows irregular epidermal and infundibular acanthosis and dilation of infundibula filled with neutrophils. Diffuse infiltrates are present in the dermis and are…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…0 mm biopsy specimen 1. Poorly circumscribed broad lesion, practically never contained wholly in a 4.0 mm biopsy specimen 2. Acanthosis and hyperpigmentation usually; epidermis sometimes thinned in the center of the lesion 2. No acanthosis or…

Melanoma arising in a giant nevus spilus maculosus

Melanoma arising in a giant nevus spilus maculosus

…us spilus maculosus. Figures 5A-E. Punch biopsy of the speckled lentiginous nevus. The biopsy was taken from the thigh. Mild acanthosis and hyperpigmentation of basal keratinocytes is present but there is no marked proliferation of melanocytes….

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Keratosis Lichenoides Chronica?

…odules covered by adherent keratosis. Examination by microscopy of sections from a lesion on an arm revealed hyperkeratosis, acanthosis, and an infiltrate of inflammatory cells in the dermis mainly along blood vessels; a transverse section showed…

Histologic Diagnosis of Inflammatory Skin Diseases

Grover’s disease

…re hyperkeratotic. Pemphigus vulgaris, when developed fully, is not focal and does not show acantholytic dyskeratotic cells, acanthosis, or parakeratosis; infundibular epidermis and epithelial structures of adnexa tend to be involved in the same…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…sion is very early in its development may be inferred from the presence of a stratum corneum still normal and the absence of acanthosis. 10.50.3A: Perivascular dermatitis, psoriasiform lichenoid + 10.50.3B: Lymphocytes and many eosinophils in…

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