Angiokeratoma circumscriptum is one of five diseases in the group of angiokeratomas. It is more common in women and is usually unassociated with systemic disease. The lesions are hyperkeratotic papules and nodules occurring most frequently unilaterally on the leg. Its relationship of the other angiomas is discussed and an unusual case on the arm of a Negro man is presented.
Lynch PJ, Kosanovich M. Angiokeratoma Circumscriptum. Arch Dermatol. 1967;96(6):665-668. doi:10.1001/archderm.1967.01610060059007