To evaluate the feasibility and safety of transmesenteric laparoscopic adrenalectomy for treatment of giant pheochromocytoma on left side.

From August 2017 to October 2018, 5 cases of giant pheochromocytoma on left side were hospitalized, the tumor diameter was 6.5-10.5 cm, with an average of 8.2 cm, 3 cases of them had a history of paroxysmal hypertension and the other 2 cases had no obvious symptoms. Transmesenteric laparoscopic adrenalectomy was performed via mesentery longitudinally at the medial mesenteric, tumor was well exposed and easy to remove. Be tender to protect the intestinal and mesenteric vessels.

All 5 procedures were well performed. The operation time was 95-180 min, with an average of 155 min. The intraoperative blood loss was 50-300 ml, with an average of 180 ml. All cases were admitted to ICU for 1-2 days after procedures. The intestinal function recovered 1-3 days after operation, and the drainage tube was removed 2-4 days after operation. The postoperative hospitalization was 8-12 days, with an average of 9.5 days. Postoperative follow-up was 4-18 months, 3 cases with preoperative paroxysmal hypertension were all relieved after operation, and no complications occurred.

For the treatment of giant pheochromocytoma on left side, transmesenteric laparoscopic adrenalectomy is feasible, safe and effective.