Acne agminata: dermoscopic features and a short review
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Updated: Aug 9, 2025

Dermoscopy Aids in the Diagnosis of Discoid Lupus Erythematosus
Published on: May 16, 2025
Wen Hao Tan, Jia Yi Goh, Inny Busmanis
1Department of Dermatology, Singapore General Hospital, Singapore. oh.choon.chiat@singhealth.com.sg.
Abstract:
Acne agminata is a rare idiopathic inflammatory dermatosis. Treatment is variable with no clear consensus. We herein report a case of a 31-year-old man with sudden onset papulonodular eruptions on his face over two months. Histopathological examination revealed superficial granuloma composed of epithelioid histiocytes and scattered multinucleated giant cells, confirming acne agminata. Dermoscopy showed focal orangish structureless areas with follicular openings with white keratotic plugs. He achieved complete clinical resolution with oral prednisolone in 6 weeks. We also reviewed the literature regarding the reported treatment regimens used.
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