Fig 1.
Clinical manifestation of left dorsal hand and left shin skin lesions and etiological and histopathological evidence.
(A) Papules on the dorsum of the left hand. (B) Direct examination of skin scrapings from the lesions showed muriform cells (10%KOH, × 400 magnification). (C) The epidermis showed pseudepitheliomatous hyperplasia, and the dermis was infiltrated by mixed cells, which were composed of histiocytes, lymphocytes, multinucleated giant cells, and muriform cells. (HE stain, × 40 magnification). (D) Muriform cells in the microabscess (HE stain, × 400 magnification). (E) Nodules, abscesses, ulcers, sinus tract, and hyperpigmentation on the lower third of the left calf. (F) The grain is white and soft, which is fungal masses formed by interweaving of parallel arranged hyphae, and chlamydospores (10%KOH, × 400 magnification). (G) septate hyphae and chlamydospores (calcofluor white stain, × 400 magnification). (H) Mixed inflammatory infiltrate within the dermis, accompanied by focal granulomatous formations consisting of neutrophils and lymphocytes. (HE stain, × 100 magnification).