Case report: incidental parathyroid adenoma in a Chinese diabetic patient with hypercalcemia and normal parathyroid hormone levels
We report a case of hypercalcemia with normal PTH levels due to a parathyroid adenoma.
Patient concerns:
A 52-year-old female patient presented with 2-year history of documented sustained high-normal serum calcium and hypercalcemia (2.51–3.03 mmol/L) with normal serum intact PTH levels (21.95–40.15 pg/ mL).
Diagnoses:
A parathyroid tumor was localized by ultrasonography and 99mTc-sestamibi dual-phase fusion imaging with single-photon emission computed tomography/computed tomography.
Interventions:
Parathyroidectomy was performed to excise the tumor completely.
Outcomes:
A 1.2-cm-sized parathyroid adenoma was removed surgically. The serum calcium was declined to normal level immediately after resection, as well as in 4- month follow-ups. The immunohistological diagnosis proved to be a PTH positive parathyroid adenoma.
Lessons:
In case of hypercalcemia, serum intact PTH and parathyroid imaging should be monitored to evaluate the presence of parathyroid adenoma with care because PHPT could present with inappropriate normal PTH.
Source: Medicine - Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research
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