Urogenital Imaging

Leiomyoma, vaginal

benign smooth muscle tumour in the vagina. These tumours are extremely rare and the aetiology is unknown. The imaging findings are those of a nonspecific well-defined enhancing soft tissue mass centred on the vagina. The lesion may be very large, but is usually under 6 cm in size. Superiorly situated leiomyomas may involve the distal ureters, which can be assessed by intravenous urography. Large lesions may interfere with delivery. Surgical removal is generally advised because of the potential risk of malignant transformation. Local recurrence has been reported. The tumour is oestrogen-dependent and regresses after the menopause.

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