中华医学杂志
2026年 · 第106卷第35期
中华医学杂志
The patient, a 33-year-old female, presented to the Endocrinology Department of the Air Force Specialized Medical Center for "recurrent tetany for 28 years". The patient developed tetany without obvious cause from the age of 5, which was relieved after calcium supplementation, and the symptoms recurred. He was diagnosed with hypoparathyroidism at the age of 6. The first grand mal seizure occurred at the age of 7, with intermittent seizures, and no further seizures occurred after the age of 12. Growth and development are normal, menarche begins at the age of 15, and tetany is prone to occur on cloudy days or during menstruation. She gave birth to a son by cesarean section at the age of 28, and the son is in good health. His father and sister are in good health, while his mother suffers from diabetes. Physical examination: no special physical appearance, normal hearing and vision, positive for Chvostek sign and Trousseau sign. Daily supplementation of elemental calcium 1 200 mg, calcitriol 0.5 μg, blood calcium 1.8 mmol/L, blood phosphorus 1.9 mmol/L, vitamin D3 64.86 nmol/L, parathyroid hormone<5.05 ng/L, 24 h urine calcium 5.44 mmol, urine phosphorus 14.72 mmol. Plain CT scan of the skull revealed multiple patchy calcifications in the bilateral cerebellar hemispheres, basal ganglia, thalamus, dentate nucleus, radiation crown area, and brain, which were symmetrically distributed with clear boundaries (Figure 1). This patient had recurrent tetany, multiple seizures, low blood calcium, high blood phosphorus, and low parathyroid hormone, which was consistent with primary hypoparathyroidism. Cranial CT findings suggested hypoparathyroidism encephalopathy.
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