Abstract
•Differential diagnoses of retroperitoneal masses should remain wide in adults.•Teratomas should be considered as a potential cause of abdominal pain and distention in young adults.•Testicular examination and past history of any intervention should be sought inn any retroperitoneal masses.
Teratomas are bizarre neoplasms derived from embryonic tissues typically found in the gonads and sacrococcygeal tissues of adults.
We report a case of histologically proven metastatic teratoma with an unusual presentation. The 32-year old male patient had a retroperitoneal tumour detected on computed tomography during the workup of abdominal pain.
Retroperitoneal teratomas are uncommon and a challenge to manage. Differential diagnoses could be a dilemma without a thorough history and a high index of suspicion.
Recurrent metastatic teratoma is one of the rare differential diagnoses of any retroperitoneal mass and can present years after complete resection of the primary tumour.