Search Results for: histiocytes

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Histologic Diagnosis of Inflammatory Skin Diseases

Erythema nodosum

…hat display foamy cytoplasm Foci of neutrophils surrounded by histiocytes in radial array (Miescher’s “radial” granulomas) in septa; clefts tend to intersect the granulomas Sparse superficial and deep perivascular infiltrate of lymp…

Histologic Diagnosis of Inflammatory Skin Diseases

Fox-Fordyce disease

…ndibula sometimes Lymphocytes in infundibular epidermis Foamy histiocytes and a few lymphocytes around infundibula and apocrine ducts sometimes Differential diagnosis histopathologic Plugging of infundibula may be seen in inflammatory diseases as una…

Histologic Diagnosis of Inflammatory Skin Diseases

Mycosis fungoides

…filtrates of lymphocytes accompanied by countless epithelioid histiocytes, many of them multinucleate, throughout the dermis and the subcutaneous fat to the base of the section of tissue Granulomatous inflammation striking throughout the dermis and t…

Histologic Diagnosis of Inflammatory Skin Diseases

Leishmaniasis

…eloped Dense diffuse infiltrate of lymphocytes, plasma cells, histiocytes, and, occasionally, neutrophils throughout the reticular dermis and, at times, involving the septa of the subcutaneous fat Numerous gray-blue dots of Leishmania in the cytoplas…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…granulomatous + 10.56.1B: Lymphocytes, plasma cells, and many histiocytes whose cytoplasm is filled with tiny round monomorphous basophilic organisms = Leishmaniasis, acute An American, European, or Asian who bears such a lesion usually has returned…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Necrobiosis?

…mucin are abundant, in the center of palisades of epithelioid histiocytes. Rheumatoid nodule is a granulomatous panniculitis (and sometimes dermatitis) in which huge deposits of fibrin are surrounded by thin epithelioid histiocytes arrayed in a palis…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Wegener’s Granulomatosis?

…nal microscopy consisted of granulomas made up of epithelioid histiocytes with necrosis in the center of them. In time, fibrosis appeared in the intima and media of vessels, as well as in tissue adjacent to blood vessels in the kidneys, upper respira…

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