Incidental diagnosis of uterine cancer on 99mTc-dimercaptosuccinic acid renal scintigraphy.

A 59-year-old woman with a history of chronic pyelonephritis underwent a renal scintiscan with technetium-99m dimercaptosuccinic acid (99mTc-DMSA). Images showed substantially hypofunctional small left kidney. A large oval extrarenal uptake area above the urine bladder was also seen. An iv X-ray urography showed at the same area a spacious "shadow". A computerized tomography showed a very large uterus, sized 19 x 10 cm, with myomatous nodes, calcifications and disintegration cavities. Hysterectomy and bilateral adnexotomy were performed. Histopathology showed a myomatous uterus with an adenocarcinoma which also affected both ovaria. External radiotherapy followed.