Search Results for: histiocytes

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ymphocytes and plasma cells around collections of epithelioid histiocytes = Rosacea, papular  Spongiosis in an infundibulum is a finding common in rosacea and in analogues of it, to wit, perioral and periocular dermatitis. 10.94.2A: Peri-infundibulit…

Histologic Diagnosis of Inflammatory Skin Diseases

Necrobiosis lipoidica

…lls along thickened septa in the subcutaneous fat Epithelioid histiocytes, some multinucleate, around blood vessels throughout the dermis and in thickened septa of the subcutaneous fat; some histiocytes impinging on vessels and present in the wall of…

Histologic Diagnosis of Inflammatory Skin Diseases

Granuloma annulare

…iltrate of lymphocytes In small foci in the reticular dermis, histiocytes in palisaded and/or interstitial array Mucin discernible in foci in which histiocytes predominate Fully developed—dermal granuloma annulare Same findings as in early lesions bu…

Histologic Diagnosis of Inflammatory Skin Diseases

Interstitial granulomatous dermatitis with arthritis

…deep perivascular and interstitial infiltrate of lymphocytes Histiocytes scattered interstitially, i.e., diffusely among collagen bundles and, in foci, in palisaded array, usually more marked in the lower than in the upper half of the reticular derm…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…16B: Abnormal lymphocytes, small lymphocytes, and epithelioid histiocytes splayed between bundles of collagen in the reticular dermis + 11.14.16C + 11.14.16D = Mycosis fungoides, plaque, granulomatous  This distinctive “interstitial” expr…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Granulomatous Mycosis Fungoides?

…of elastic fibers are noted consistently in the cytoplasm of histiocytes, often multinucleate ones, in lesions of mycosis fungoides that are associated with granulomatous inflammation. Some fragments of elastic fibers situated in histiocytes may und…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…dermatitis, psoriasiform lichenoid + 10.103.1B: Infiltrate of histiocytes, plasma cells, lymphocytes, and neutrophils, edema of the papillary dermis, and neutrophils in the acanthotic epidermis, including in a broad zone of parakeratosis = Syphilis,…