Superior mediastinal typical carcinoid detected by 99mTc-MIBI SPECT/CT imaging: A case report

摘要

Rationale: This is a rare case of mediastinal typical carcinoid tumor with elevated parathyroid hormone (PTH) and hypercalcemia detected by ^{99mTc -methoxy-isobutyl-isonitrile(99mTc-MIBI) single photon emission computed tomography/computed tomography (SPECT/CT) imaging. Patient concerns: A 65-year-old male patient presented with hypercalcemia and elevated PTH. Diagnoses: The preoperative diagnosis was ectopic parathyroid adenoma in the right superior mediastinum . Interventions: We performed endoscopic removal of the mass in the superior mediastinum . Outcomes: Histopathology and immunohistochemistry revealed typical carcinoid . Lessons: The differential diagnosis of mediastinal tumors with elevated PTH detected by 99mTc-MIBI dual-phase imaging should include ectopic parathyroid adenoma as well as carcinoid .}