[Mediastinal parathyroid cystadenoma--a rare cause of primary hyperparathyroidism].
Parathyroid cysts located in the mediastinum are rare. They may be non-functioning or associated with primary hyperparathyroidism (PHPT). We present a patient with persistent PHPT despite previous parathyroid surgery. Parathyroid scintigraphy with 99mTc sestamibi showed no focus with radioactivity retention, but MRI revealed a large parathyroid cystadenoma in the mediastinum, which was successfully removed. In general, MRI is not the first choice for parathyroid imaging, but when the adenoma is localized at ectopic sites, MRI is a good imaging modality.
Øgard
Christina Gerlach
CG
Amtssygehuset i Herlev, Klinisk Fysiologisk Afdeling. ogard@dadlnet.dk
Nielsen
Steen Levin
SL
Jakobsen
Henrik
H
Leth-Espensen
Per
P
Vestergaard
Henrik
H
D000368:Aged; D003537:Cystadenoma / Q000150:complications* / Q000175:diagnosis / Q000000981:diagnostic imaging; D006801:Humans; D049950:Hyperparathyroidism, Primary / Q000175:diagnosis / Q000209:etiology*; D008279:Magnetic Resonance Imaging; D008297:Male; D008479:Mediastinal Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000000981:diagnostic imaging; D010282:Parathyroid Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000000981:diagnostic imaging; D011877:Radionuclide Imaging