syringocystadenoma papilliferum

sy·rin·go·cys·tad·e·no·ma pa·pil·li·f'e·rum

a syringocystadenoma characterized by numerous fingerlike projections of proliferated neoplastic epithelial cells in two layers on a stromal core of fibrous connective tissue infiltrated by plasma cells occurring singly or as part of a nevus sebaceus.

syringocystadenoma papilliferum

A benign skin-adnexal tumour or hamartoma with eccrine/apocrine differentiation, which most often occurs on the scalp, face and neck and less commonly in the limbs and chest; ± associated with naevus sebaceus.