[Oncocytic thyroid adenoma imitating functionally active parathyroid adenoma]

Area of Science:

• Endocrinology
• Surgical Oncology
• Pathology

Background:

• Follicular thyroid tumors and parathyroid adenomas can present diagnostic challenges.
• Combined endocrine neoplasms require careful differential diagnosis.

Purpose of the Study:

• To report a unique case of oncocytic thyroid adenoma mimicking primary hyperparathyroidism.
• To emphasize the importance of considering combined thyroid and parathyroid gland pathologies.

Main Methods:

• Surgical intervention for a patient with suspected thyroid and parathyroid disease.
• Post-operative pathological analysis to confirm tumor types.
• Clinical and laboratory evaluation for hyperparathyroidism.

Main Results:

• An oncocytic thyroid adenoma was identified, presenting with symptoms of primary hyperparathyroidism.
• The patient also had a parathyroid gland adenoma.
• Multinodular goiter and intrathyroidal parathyroid adenoma complicated the initial diagnosis.

Conclusions:

• Combined thyroid and parathyroid tumors can mimic each other, necessitating high clinical suspicion.
• Thorough diagnostic workup, including imaging and laboratory tests, is crucial for differentiating these neoplasms.
• Surgical management requires careful pre-operative assessment to address both pathologies effectively.