[Thymic carcinoid associated with multiple endocrine neoplasia type 1]

Area of Science:

• Endocrinology
• Thoracic Surgery
• Oncology

Background:

• Multiple Endocrine Neoplasia type 1 (MEN-1) is a genetic disorder predisposing individuals to tumors in endocrine glands.
• Thymic carcinoids are rare neuroendocrine tumors that can be associated with MEN-1.
• Hyperparathyroidism is a common manifestation of MEN-1, often caused by parathyroid adenomas.

Observation:

• A 37-year-old male presented with an anterior mediastinal mass.
• Imaging revealed a 6.5 cm mass, diagnosed as thymic carcinoid via biopsy.
• Endocrinological workup identified pituitary adenoma and hyperparathyroidism, leading to a clinical diagnosis of MEN-1.

Findings:

• Surgical management included thymectomy with lymph node dissection and total parathyroidectomy with autotransplantation.
• Postoperative genomic analysis confirmed the diagnosis of MEN-1.
• The patient's thymic carcinoid and hyperparathyroidism were successfully treated concurrently.

Implications:

• Given that 25% of thymic carcinoids are MEN-1 related and 95% of MEN-1 patients develop hyperparathyroidism, concurrent surgical management is a viable therapeutic strategy.
• This case underscores the importance of considering MEN-1 in patients with thymic carcinoids and vice versa.
• Integrated surgical approaches can improve patient outcomes for complex endocrine-neoplastic syndromes.