Scrotal primary lipoma with unusual clinical appearance in newborn.

We report an unusual pediatric case of a primary scrotal lipoma, consisting of a pendulous mass arising in the midline of the scrotum. This is of interest because a pendulous mass in a neonate at the midline of the scrotum and below the penis, which looks just like another penis in terms of its shape, size, and length, could be confused with the "diphallia" condition. Furthermore, the mass was identified in utero. We made the diagnosis on the basis of the histopathologic features.