Pheochromocytoma: a retrospective study from a single center.

Area of Science:

• Endocrinology
• Oncology
• Genetics

Background:

• Pheochromocytoma (PCC) is a neuroendocrine tumor originating from chromaffin cells, primarily in the adrenal medulla.
• Recent advancements have significantly enhanced the understanding of PCC pathogenesis and clinical management.

Purpose of the Study:

• To evaluate the referral patterns for genetic testing in patients diagnosed with pheochromocytoma (PCC).
• To identify opportunities for improving genetic counseling and testing in PCC management.

Main Methods:

• Retrospective review of 33 patients with a histological diagnosis of PCC.
• Analysis of referral rates for genetic testing, focusing on patient demographics and clinical presentation.
• Categorization of patients into suspected PCC and adrenal incidentaloma groups.

Main Results:

• 54% of PCC patients were referred for genetic testing, a higher rate than reported in other studies.
• Positive inherited susceptibility genetic variants were identified in 6 patients.
• Genetic testing was underutilized in patients with apparently sporadic PCC, particularly those over 30.

Conclusions:

• While referral rates for high-risk PCC patients are improving, there's a missed opportunity for genetic testing in sporadic cases.
• Increased awareness of genetic associations with PCC among all healthcare providers is essential for timely diagnosis and management.
• Optimizing genetic testing strategies can improve outcomes for patients with pheochromocytoma.