A peculiar form of pigmented nevus consisting of grouped pigmented papules clinically was examined. It was found that these nevus cell nevi have a unique pattern of proliferation around and in the eccrine sweat duct in epidermal-dermal structures. I propose to call this type of nevus ``eccrine-centered nevus."
Mishima Y. Eccrine-Centered Nevus. Arch Dermatol. 1973;107(1):59-61. doi:10.1001/archderm.1973.01620160031008