Fig. 5
From: The so-called Y-type urethral duplication: anatomical insights through controversial terminology
a, b Second case with abnormal accessory urethro-anal tract: a micturating cystogram demonstrating hypoplasia of penile urethra (short white arrows) + accessory tract between posterior urethra and anal canal (long white arrow); b pelvic MRI (mid sagittal T2WI) of the same case demonstrating associated corporeal dysgenesis. c Control group for comparison: pelvic MRI (mid sagittal T2WI) of a 33-month-old boy demonstrating normal penile corporeal anatomy. UB, urinary bladder; P, pubic symphysis; asterisk: corpus spongiosum; double yellow arrows: corpus cavernosum