MR and CT appearance of urethral clear cell adenocarcinoma in a woman

We present a case of clear cell adenocarcinoma of the female urethra that has been evaluated with CT and MRI. The lesion was a well-demarcated mass surrounded with peripheral enhancement on CT. On MRI a sharply marginated mass was located in the midurethra, giving rise to a smooth elevation of the bladder base. On T2-weighted imaging, the lesion was hyperintense, being surrounded by a ring of lower signal intensity at the periphery. A central urethral dot of lower signal intensity traversed the anterior one-third of the mass but was preserved in its entire length.