Fig. 9

Urogenital sinus anomalies. MR images [(1) T1- and (2) T2-weighted fat-supressed MR in the sagittal plane] showing a retrovesical blind vagina with apparent inferior half atresia and undetected fistula tract to the bladder (<<) in a 28-year-old patient. Cystoscopy confirmed the presence of an orifice situated in the trigone, just above the bladder neck, equidistant and below both ureteral meati, through which menstrual blood clearly exited from the vagina. The patient suffered from cyclic menuria and the opening of the fistulous tract into the bladder trigone was in fact the hymen (courtesy of Dr. JC. Martínez-Escoriza, Alicante)