Multinucleate cell angiohistiocytoma: report of three new cases and literature review.

Multinucleate cell angiohistiocytoma (MCA) is a rare benign vascular proliferation of the skin of unknown cause. About 75 cases have been reported previously. We present herein three new cases of MCA studied immunohistologically and present a review the relevant literature that delineates the salient clinicopathological features of this unusual entity.