Accessory scrotum with lipoma in an infant.

We report on a 2-year-old male infant with accessory scrotum with lipoma presenting a perineal mass. Preoperatively no abnormality in the urinary tract and the anorectum was demonstrated. The tumour was resected and perineoplasty was performed. The resected specimen histologically revealed lipoma with tissue suggestive of scrotum. The patient recovered well and was discharged with no clinical complaints. This rare congenital anomaly is described in this paper. The slight continuity between the left scrotum and an accessory scrotal tissue in this case may suggest that this rare anomaly was derived from some abnormality in the migration of precursor tissue of scrotum.