MULTINUCLEATE CELL ANGIOHISTIOCYTOMA OF THE UPPER LIP

Multinucleate cell angiohistiocytoma is a rare benign fibrohistiocytic vascular tumor with distinctive histologic features. It appears clini cally as small, slow-growing, grouped reddish-brown to purple papules and nodules that may be mistaken for other vascular proliferative or r eactive conditions. Multinucleate cell angiohistiocytoma tends to occu r more frequently in women, to favor the extremities, and to appear as multiple lesions. We report a case of a solitary multinucleate cell a ngiohistiocytoma that appeared as a nodule on the upper lip of a man b ut that otherwise demonstrated characteristic histologic and immunohis tochemical features. Greater awareness of this uncommon benign lesion will facilitate diagnosis and appropriate management.