case_images: PMC11397170_01
case_images: Clinical manifestation: (A) annular and semi-annular, ill-defined, erythematous patches with multiple tiny peripheral papules on the right arm; histopathological findings (hematoxylin-eosin): (B) superficial and deep perivascular and periductal inflammatory cell infiltrates of lymphocytes in the dermis (original magnification x100), (C) focal epidermal spongiosis with neutrophils and necrotic cells in the acrosyringium (original magnification x400).
case_images: CCID-17-2039-g0001.jpg
case_images: PMC11397170_01_CCID-17-2039-g0001.jpg
case_images: f0001
case_images: Dermatological examination revealed annular and semi-annular, ill-defined, erythematous patches with multiple tiny peripheral papules on the right arm (Figure 1A). To gather further information, a skin biopsy was conducted, which revealed superficial and deep perivascular and periductal inflammatory cell infiltrates of lymphocytes in the dermis (Figure 1B) as well as focal epidermal spongiosis with neutrophils and necrotic cells in the acrosyringium (Figure 1C).