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Sep 2011

An Erythematous Plaque With Overlying Alopecia on the Scalp of a Child —Diagnosis

Arch Dermatol. 2011;147(9):1097-1102. doi:10.1001/archdermatol.2011.250-b

The histopathologic examination of the biopsy specimen revealed numerous aggregates of mostly epithelioid histiocytes and lymphocytic infiltrates (Figure 2, original magnification ×200). Numerous 2- to 4- μm round to oval organisms with their kinetoplasts located at the periphery of vacuolated cytoplasms of macrophages were found, consistent with amastigotes (Figure 3, original magnification ×1000). The patient's problem was therefore diagnosed as cutaneous leishmaniasis.

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