Leiomyomas of the vagina are very rare tumors of the female genital tract with only 300 cases reported so far. A case of removal of the vaginal leiomyoma presenting as tumor previa in advanced pregnancy is described. Removal of the tumor allowed vaginal birth three weeks after surgery.
"Pelvic kidneys in the pregnant patient may behave as other pelvic masses, obstructing the process of labor by forming a " tumor previa. " The most common conditions causing tumor previa are leiomyomas  and ovarian tumors . Other rare causes described in the literature are deciduosis peritonei, pelvic hydatid cyst, sacral tumors, cervical carcinoma, and retroperitoneal xanthomatous fibrolipoma. "
[Show abstract][Hide abstract] ABSTRACT: Renal ectopia occurs when the kidney fails to ascend normally to the retroperitoneal renal fossa. Bilateral cases have also been reported but are very rare. Pregnancy and labor with maternal renal ectopia provides a unique challenge to the obstetricians attempting to prevent damage to the kidneys during labor and allow safe delivery. We describe a case of congenital bilateral pelvic kidneys assessed and diagnosed by 3D sonography as “tumor previa” and managed accordingly.
07/2015; 2015:1-3. DOI:10.1155/2015/694245
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