Eccrine angiomatous hamartoma with massive mucin deposition.

Eccrine angiomatous hamartoma (EAH) is a rare condition characterized histologically by an increased number of eccrine structures and numerous vascular elements. Although EAH sometimes shows mucinous stroma, the mucin is usually not abundant. In this report, we described a case of EAH that had massive mucin deposition, especially around the eccrine structures. Our case and a similar reported one indicate that EAH includes a rare variant with a large amount of mucin as one of the hamartoma components.