Mucinous eccrine naevus: case report and review of the literature

Mucinous eccrine naevus (MEN) is an extremely rare variant of eccrine naevus. There are only nine reported cases in the English literature. We report a 3-month-old boy with a congenital lesion on the lower back, and review the other cases in the literature. In most cases, MEN presents before puberty. The commonest presentation is a unilateral, solitary, brownish nodule without hyperhidrosis occurring on the legs. The diagnosis of this condition is confirmed by the characteristic histopathological features. Treatment options may be considered if symptomatic.