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Penoscrotal Transposition (PST) is a rare condition where the penis develops caudal to its normal suprascrotal position with its shaft embedded somewhere along the scrotum (partial PST) or completely posterior to the scrotum (complete PST). Fewer cases of this presentation have been reported in the literature. Our case is among very few reported in Africa. This case is a unique form of PST where the penis, scrotum, and anus were abnormally positioned, compared with cases already reported.
A 27-year-old M.A, with no underlying chronic illness, who attended a regular antenatal clinic, gave birth to a term male baby. The baby was referred to Komfo Anokye Teaching Hospital due to a urogenital anomaly. He is the first child of non-consanguineous parents with no family history of a similar condition.
Physical examination revealed preauricular tags and an unusual positioning of the genitals with no spinal deformity. The scrotum was about 8 cm anterior to the penis (pre-penile) but otherwise of normal appearance, without bifidity. Both testicles were impalpable within the scrotal sac. The penis was abnormally positioned at the coccyx like a persistent vestigial tail with a patent anal opening seen above it. The baby had passed meconium within 48 hours of birth. The stretched penal length measured 5.5 cm with a large meatal opening.
Results
Further radiological evaluation with Ultrasound and Magnetic Resonance Imaging (MRI) of the abdomen and pelvis revealed transposition of the genitals, a horseshoe kidney, and dural ectasia. An echocardiogram indicated the presence of both patent ductus arteriosus and foramen ovale. Surgery was planned for the baby at six months of age, but sadly, the baby passed away five months after a brief illness.
Complete penoscrotal transposition is a rare urogenital malformation. The condition may be characterized by associated major or life-threatening malformations involving the urogenital, cardiovascular, intestinal, and skeletal systems. The surgical correction of transposition requires careful planning and readjustment of tissue.