V4-09: Laparoscopic ultrasound assisted laparoscopic retroperitoneal schwannoma excision

Video

Introductions and Objectives
Schwannomas are rare, benign tumors that originate from the neural sheath. Rarely, schwannomas can arise from the retroperitoneum and adrenal medulla. We describe a case of a 61-y-old man who presented with an incidentally discovered retroperitoneal tumor near right adrenal gland.

Methods
Ultrasound and computed tomography scans revealed a 25 mm lesion with solid and cystic areas near the adrenal gland. Metanephrin and nor methanephrine levels were increased in 24-hour urine test. The differential diagnosis were pheochromacytoma or paraganglioma.

Results
Intraoperative laparoscopic ultrasound asssisted laparoscopic resection of retroperitoneal tumor excision was performed. Surrenal could be spared by using intraoperative laparoscopic ultrasound. Pathological examination revealed a schwannoma.

Conclusions
Laparoscopic ultrasound is useful at organ-sparing laparoscopic surgery.

Funding: none