Multiple endocrine neoplasia type 1 with multiple organ involvement and clustered onset: A case report and literature review

• Multiple Endocrine Neoplasia type 1 (MEN1) is a rare disease characterized mainly by multiple neuroendocrine tumors in the parathyroid glands, pancreas, and pituitary gland. • The main treatment approach for MEN1 is to promptly detect the tumors and then undergo surgical treatment. • For patients with MEN1 who have multiple organ involvement, regular follow-ups and lifelong multidisciplinary follow-up are necessary after surgical treatment.