Prenatal Diagnosis of Renal Rhabdoid Tumor: A Rare Malignant Neoplasm

Abstract Rhabdoid tumors of the kidney are highly lethal malignancies of infancy. We report the prenatal detection of this renal tumor in a fetus in the third trimester of pregnancy. Ultrasonologically, the tumor appeared as a large mass in the left renal area associated with severe polyhydramnios. Though the sonographic features alone did not allow distinction from a benign lesion, tumor extension into the subcutaneous plane favored the possibility of a malignant renal tumor and this was confirmed postnatally on histopathology.