Multinucleate cell angiohistiocytoma (MCAH) is a cutaneous condition that presents as slowly growing, multiple, discrete but grouped, red to violaceous papules
== Signs and symptoms ==
Lesions are asymptomatic and most commonly found on the face and acral regions, however they have been described in other locations such as the trunk and, less frequently, the mucous membranes; they are usually unilateral and appear as papules ranging in diameter from 2 to 15mm.
They can be smooth and flat, or they can seem like reddish, pink, violaceous, or brown papules with a slightly elevated dome-shaped s