Congenital blaschkoid eccrine spiradenoma on the face.

Eccrine spiradenoma is an uncommon tumour of the sweat gland(s) and generally occurs as a solitary small painful nodule. Very rarely, it may present as multiple tumours arranged in a linear/blaschkoid pattern. An 8-year-old girl had many papulonodular lesions, arranged in a linear pattern on the left half of the face, involving the forehead and lateral side of the nose. The lesions were along Blaschko's lines. Lesions were reported to be present at birth; no family member had similar lesion(s), either in solitary or multiple form. Histopathologic examination of a biopsy specimen revealed characteristic features of eccrine spiradenoma. The case is reported because of the rare occurrence of this presentation.