Leishmanial Abscess

Differential diagnosis of NLCS includes nevus sebaceous, skin tag or fibroepithelial polyp, neurofibroma, lymphangioma, lipofibroma, focal dermal hypoplasia (Goltz syndrome), lipomatosis, and Michelin tire baby syndrome.[2,4] Histopathological examination helps in the differentiation. There is absence of fat cells in the dermis in skin tag. In lipofibroma skin, appendages are absent in the dermis, but a dermal collection of fat cells are present. Goltz syndrome is associated with several ectodermal and mesodermal deformities, and clinically, the patient presents with syndactyly, hypoplasia of nails, teeth, and hairs. Microscopically, there is extreme attenuation of collagen and absence of skin appendages in the dermis. There is no continuity of the fat cells with the subcutis in lipomatosis.[6]