A 34-year-old man with end-stage renal failure status post rejection of a deceased donor kidney transplant presented with bone pain in the setting of elevated serum parathyroid hormone and calcium levels. A 99mTc-MIBI SPECT/CT was performed before planned subtotal parathyroidectomy. SPECT/CT imaging revealed a 1.9-cm anterior mediastinal lesion with radiotracer uptake on both the immediate and delayed images. Surgical pathology of the lesion showed a benign thymic cyst with no parathyroid component.
From the *Division of Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, University of Pennsylvania, Philadelphia, PA; and
†Department of Pathology, Westchester Medical Center, Valhalla, NY.
Received for publication August 27, 2018; revision accepted October 7, 2018.
Conflicts of interest and sources of funding: none declared.
Correspondence to: Austin Pantel, MD, Department of Radiology, Hospital of the University of Pennsylvania, 3400 Civic Center Blvd, Philadelphia, PA 19104. E-mail: Austin.Pantel@uphs.upenn.edu.