Thrombosed angiokeratoma is a cutaneous vascular lesion that may resemble melanoma. This paper discusses the cases of thrombosed angiokeratoma seen in a five-year period at the Dermatology Clinic, US Naval Hospital, San Diego, Calif. A new observation is reported in five of these cases consisting of diffusion of red cells into the surrounding upper dermis creating a brown halo about the central black lesion. A representative case is presented.
HAYEN DO. Thrombosed Angiokeratoma Simulating Malignant Melanoma. Arch Dermatol. 1966;93(3):358–361. doi:10.1001/archderm.1966.01600210094017
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