title: Actinic granuloma.
abstract: A 45-year-old man presented with a 3-year history of asymptomatic, annular, erythematous plaques on the face and neck. Histopathologic examination showed sarcoidal granulomas with an associated mixed-cell infiltrate, loss of elastic fibers, and no increase in mucin. These findings were consistent with a diagnosis of actinic granuloma, which is an uncommon, idiopathic disease that is characterized by granuloma annulare-like plaques on sun-exposed areas.
authors.affiliation: New York University Department of Dermatology, USA.
authors.forename: Jennifer A
authors.initials: JA
authors.lastname: Stein
authors.forename: Bill
authors.initials: B
authors.lastname: Fangman
authors.forename: Bruce
authors.initials: B
authors.lastname: Strober
mesh_terms: D000287:Administration, Topical; D001706:Biopsy; D002610:Cheek; D003937:Diagnosis, Differential; D005500:Follow-Up Studies; D005546:Forehead; D006099:Granuloma / Q000188:drug therapy / Q000209:etiology / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009333:Neck; D010787:Photosensitivity Disorders / Q000188:drug therapy / Q000209:etiology / Q000473:pathology*; D012867:Skin / Q000473:pathology / Q000528:radiation effects; D013473:Sunscreening Agents / Q000008:administration & dosage; D014466:Ultraviolet Rays / Q000009:adverse effects
chemical_list: D013473:Sunscreening Agents