Para-hyoid ectopic parathyroid adenoma localized by Tc-99m MIBI SPECT.
A 64-year-old woman with a history of I-131 ablation for Graves hyperthyroidism and bilateral parathyroid exploration with resection of a left inferior parathyroid adenoma presented 2 years after surgery with marked fatigue, irritability, and joint pain. Laboratory testing revealed an elevated calcium and parathyroid hormone levels suspicious for hyperparathyroidism. The ultrasound indicated no evidence of a parathyroid adenoma. Tc-99m-MIBI SPECT demonstrated a focus of uptake posteroinferior to the right submandibular gland, suspicious for a parathyroid adenoma. Repeat ultrasound and CT confirmed the presence of a para-hyoid adenoma inferior to the right submandibular gland.
Rajagopalan
Malolan S
MS
Department of Radiology, University of Pittsburgh Medical Center, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15213, USA.
Narla
Vinod V
VV
Kanderi
Tanuja
T
Muthukrishnan
Ashok
A
D002828:Choristoma / Q000000981:diagnostic imaging* / Q000473:pathology*; D005260:Female; D006801:Humans; D006928:Hyoid Bone / Q000000981:diagnostic imaging* / Q000473:pathology*; D008875:Middle Aged; D010282:Parathyroid Neoplasms / Q000000981:diagnostic imaging*; D017256:Technetium Tc 99m Sestamibi; D015899:Tomography, Emission-Computed, Single-Photon; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
D017256:Technetium Tc 99m Sestamibi