Fibrous hamartoma of infancy presenting as a perspiring neck mass.

An unusual case of fibrous hamartoma of infancy is reported. This lesion presented as a gradually enlarging, perspiring left neck mass in an eight month old male. Histologic examination revealed the characteristic features of this entity, with the additional finding of eccrine gland hyperplasia. In a review of the literature, we found no other reports of this unique histologic finding or clinical presentation.