Histologic examination revealed an angiomatous, nonencapsulated tumor with numerous vascular lumina scattered throughout the dermis. Dense aggregates of monotonous round cells surrounded convoluted vascular spaces. These findings are consistent with glomangioma.
An arteriogram of the right arm revealed findings consistent with a cavernous hemangioma, and the patient was fitted with a compression sleeve to minimize the possibility of further engorgement, edema, and limb asymmetry.