Abstract
Congenital perineal lesions are rare and can occur along with other birth defects such as anorectal malformations (ARMs) and urogenital anomalies. A colorectal hamartoma associated with a urogenital anomaly without ARM is extremely rare. We recently treated a newborn with posterior hypospadias and a solid perineal mass diagnosed as a colorectal hamartoma.
Highlights
Congenital perineal lesions are rare and can occur along with other birth defects such as anorectal malformations (ARMs).[1]
We recently treated a newborn with hypospadias, without an ARM, who had a perineal tumor based on ectopic colorectal tissue, i.e., hamartoma
Reports of ectopic colorectal tissue presenting as a perineal tumor in patients without ARM are even rarer
Summary
Congenital perineal lesions are rare and can occur along with other birth defects such as anorectal malformations (ARMs).[1]. A neonate born premature at 32 weeks with a birth weight 1,740 g was evaluated for a soft dark pink perineal tumor arising 5 mm from a normal anus with associated normal passage of stools. He had a proximal hypospadias with a bifid scrotum and bilateral testes (►Fig. 1a). Cystography via an inserted suprapubic catheter showed a normal bladder, short urethra with stenotic distal part, and connection with a tubular structure posterior of the urethra. Magnetic resonance imaging (MRI) showed a perineal tumor of 13 Â 6 Â 15 mm with close approximation of the urethra, the tubular structure behind the urethra and the rectum (►Fig. 2a). A careful dissection with special attention to nearby structures like urethra and rectum and use of bipolar coagulation is important for a successful treatment
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