[Less-than-subtotal parathyroidectomy in MEN1-ralated primary hyperparathyroidism: a case report].

This case reported a case of multiple endocrine neoplasia type 1（MEN1）. The patient was admitted to hospital on January 17 2020 due to persistent ostealgia and the elevated calcium level in the last 2 years. Laboratory tests showed elevated parathyroid hormone（PTH） and serum calcium level, which were 2295 ng/L（normal, 10-69 ng/L） and 3.15 mmol/L（normal, 2.03-2.54 mmol/L）. Ultrasound of the neck found a solid nodule under the left inferior pole of thyroid, while 99mTc-MIBI SPECT/CT showed enhancement at the same place. Subsequently, cranial MRI found a tumor in sellar area, and abdominal MRI showed a tumor in left adrenal gland. Finally, the patient was diagnosed as MEN1.