Context: Adrenalectomy for pheochromocytoma (PHEO) poses difficulties due to the elevated chance of conversion. The objective of this study was to conduct a comparative analysis of the occurrence and determinants of conversion in left-sided abdominal laparoscopic adrenalectomy (LLA) and right-sided abdominal laparoscopic adrenalectomy (RLA).

Methods: A retrospective analysis was conducted to include a total of 271 patients diagnosed with PHEO. These patients were separated into two groups: LRA (N=121) and LLA (N=150). The study period spanned from September 2016 to September 2023.

The process of performing an adrenalectomy for pheochromocytoma (PHEO) is difficult due to the significant risk of conversion. The objective of this study was to conduct a comparative analysis of the occurrence and determinants of conversion in left-sided abdominal laparoscopic adrenalectomy (LLA) and right-sided abdominal laparoscopic adrenalectomy (RLA).

Methods: A retrospective analysis was conducted to include a total of 271 patients diagnosed with PHEO. These patients were separated into two groups: LRA (N=121) and LLA (N=150). The study period spanned from September 2016 to September 2023.

Inclusion Criteria:

• Unilateral pheochromocytoma of any size, over 18 years old, both males and females

Exclusion Criteria:

• Patients undergoing initial open adrenalectomy, - Additional surgical interventions during total laparoscopic adrenalectomy, - Partial adrenalectomy,

Bilateral PHEOS. Hemorrhagic diathesis, Structural deformity Pregnancy,

- Prior unilateral abdominal surgery, data is absent. The preoperative diagnosis is ambiguous. Hereditary (PHEO), or recurrent PHEO

An analysis of individuals who have undergone TLA and have unilateral PHEO of any size, aged over 18 years, and of both sexes.