Fig. 2
From: Primary vaginal calculus in a woman with urogenital sinus anomaly: a case report
a Axial and b Sagittal T2-weighted imaging with fat saturation of pelvis, showing a large, extremely low-signal intensity mass (c) in the vagina that caused the uterus moved upward. A balloon catheter shadow (thick arrow) can be seen above the mass. The urethra and vagina form a common channel (arrow). c Sagittal contrast-enhancement T1-weighted imaging with fat saturation of pelvis, showing the mass has no enhancement