Primary intrarenal teratoma in an adult: A case report and review of literature

Abstract

A 35-year-old male presented with left loin pain. On evaluation, he was diagnosed to have a left renal lower polar mass. He underwent partial nephrectomy. The histopathological examination was suggestive of teratoma of the kidney. We present this case, as intrarenal teratomas in adults are extremely rare and only a very few cases are reported in literature.

Primary renal teratoma: a rare entity

“…Teratomas mostly occur in the ovaries, the sacrococcygeal region, the testes, the central nerval system, the mediastinum, and only rarely in other locations with less than 5% occurring in the abdomen [2,3]. Kidney is one of the least common locations for teratomas and other germ cell tumors [1]. Teratomas are thought to have been present since birth, or even before birth, and are therefore considered as congenital tumors [3].…”

“…Teratomas are neoplasms that arise from pluripotent cells and can differentiate along one or more embryonic germ lines [1]. Renal teratoma is an exceedingly rare condition [1].…”

“…Renal teratoma is an exceedingly rare condition [1]. Teratomas commonly arise in the gonads, sacrococcygeal region, pineal gland, and retroperitoneum.…”

Mature Cystic Renal Teratoma: A Rare Entity

“…Teratomas are neoplasms of embryonal origin. They are predominantly extragonadal, occur in the midline and are generally associated with reproductive organs 1 .Extragonadal teratomas are more commonly seen in the retroperitoneum and mediastinum. In infants, sacrococcygeal region is more commonly involved.…”

“…Teratomas are neoplasms that arise from pluripotent cells and can differentiate along one or more embryonic germ lines 1 . Germ cell tumors can arise not only in the gonads but also in the anterior mediastinum, retroperitoneum, parasacral and coccygeal region, perineal and other intra cranial sites.…”