Diffuse dermal histiocytosis. A variant of generalized granuloma annulare.
A young man had asymptomatic, confluent, annular erythematous/violaceous plaques on the trunk and extremities. Pathology showed a moderately dense dermal infiltrate of spindle cells characterized as non-X histiocytes by immunohistology and ultrastructural analysis. We believe this is an unusual form of diffuse histiocytosis and should be classified as a variant of generalized granuloma annulare.
Guitart
J
J
Department of Dermatology, Cleveland Clinic Foundation, Ohio 44195.
Zemtsov
A
A
Bergfeld
W F
WF
Tomecki
K J
KJ
D000328:Adult; D006099:Granuloma / Q000473:pathology; D006644:Histiocytes / Q000473:pathology; D015614:Histiocytosis / Q000473:pathology; D006801:Humans; D008297:Male; D009000:Monocytes / Q000473:pathology; D012871:Skin Diseases / Q000473:pathology