Search Results for: kaposi\\'s sarcoma

Histologic Diagnosis of Inflammatory Skin Diseases

Darier’s disease and simulators of it

…re foci of acantholytic dyskeratosis than are seen in a single papule of Darier’s disease. Grover’s disease expresses itself histopathologically in various ways, but the sine qua non for diagnosis is the presence, in foci, of some cells

Histologic Diagnosis of Inflammatory Skin Diseases

Tinea versicolor

…from changes in the pattern of distribution of melanosomes in keratocytes. Azelaic acid, a dicarboxylic acid produced by Malassezia furfur, seems to be responsible for the interference with the transfer of melanosomes to keratocytes. Another…

Histologic Diagnosis of Inflammatory Skin Diseases

Rosacea

…as well as pustules and telangiectases Course Protracted, with tendency to worsening Variations clinical Telangiectatic expression consists of erythematous macules associated with strikingly dilated end blood vessels. Rhinophyma is characterized by…

Dermoscopic clues to diagnose acantholytic dyskeratosis

Dermoscopic clues to diagnose acantholytic dyskeratosis

…f the lesions in both cases showed a central yellowish to brown star-like pattern overlying a pinkish homogeneous structureless area (Figure 2A and B). Figure 2. (A) Dermoscopic evaluation of case 1 displayed a central yellowish to brown star-like…

Differential Diagnosis in Dermatopathology

Herpes simplex vs. Vaccinia

A granulomatous inflammatory process that presents itself in children as multiple yellowish papules or nodules that often are associated with systemic involvement of eyes, liver, and testes. In adults it is usually a solitary lesion confined to the…

Differential Diagnosis in Dermatopathology

Dermatofibroma vs. Dermatofibrosarcoma protuberans

A granulomatous inflammatory process that presents itself in children as multiple yellowish papules or nodules that often are associated with systemic involvement of eyes, liver, and testes. In adults it is usually a solitary lesion confined to the…

Differential Diagnosis in Dermatopathology

Discussions

…becomes sprinkled with neutrophils, eosinophils, lymphocytes, and plasma cells. Eventually, a xanthogranuloma undergoes regression by way of fibrosis. Despite the fact that “juvenile” and “adult” expressions of cutaneous

Differential Diagnosis in Dermatopathology

Lymphomatoid papulosis vs. Mycosis fungoides, plaque

A granulomatous inflammatory process that presents itself in children as multiple yellowish papules or nodules that often are associated with systemic involvement of eyes, liver, and testes. In adults it is usually a solitary lesion confined to the…

Differential Diagnosis in Dermatopathology

Discussions

…infiltrates of mesenchymal cells in company with bundles of collagen, the two together occupying at least much of the thickness of the dermis and sometimes part of the subcutaneous fat. Nuclei are not atypical as a rule and mitotic figures are few…