Introduction Embryological malformations of the urethra (urethral groove) may involve the urethral folds or genital tubercle Two main types epispadias urethra opens on dorsal surface of penis urine goes ↑ defect in the genital tubercle hypospadias urethra opens on ventral surface of penis urine goes ↓ defect in closure of urethral folds secondary to abnormal androgen production associated with a ventral curvature of the penis (chordee) risk factors monozygotic twins potential association with in-vitro fertilization (IVF)
QUESTIONS 1 of 1 1 Previous Next (M1.RP.12.19) A newborn male is found to have the urethral opening on the ventral side of his penis. Figure A demonstrates this defect in an adult. This abnormality is a result of which of the following? QID: 101913 FIGURES: A Type & Select Correct Answer 1 Incomplete fusion of the urachal duct 9% (6/68) 2 Incomplete fusion of the urethral folds 76% (52/68) 3 Incomplete fusion of the labioscrotal swellings 9% (6/68) 4 Dysgenesis of the genital tubercle 3% (2/68) 5 Vitelline fistula 0% (0/68) M 1 Question Complexity E Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 2 Review Tested Concept Review Full Topic