Mustafa Turhan Sahin
Posters-Accepted Abstracts: J Clin Exp Dermatol Res
Targetoid hemosiderotic hemangioma (THH), also known as hobnail haemangioma, is a benign, solitary, targetoid vascular neoplasm occurring predominantly on the proximal extremities and trunk. Most patients exhibit a typical, targetoid haemangioma,whereby a small, solitary, purple and/or brown papule is surrounded by an ecchymotic ring that can expand or subsequently disappear with persistence of the central papule. The halo, however, is not a constant finding, thus the term hobnail haemangioma was coined to describe the non-targetoid variant of THH. Duration of the lesions ranges from 1 month to 20 years. During this time, THH may undergo episodic and cyclic changes in morphology. Dermoscopy has been scarcely used in the diagnosis of THH. Here we describe our cases of targetoid hemosiderotic hemangioma, and study their monthly changing dermoscopical findings to show that this technique could be useful in the monitoring and differential diagnosis of this scarcely reported entity.