Parathyroid Adenoma at the Parapharyngeal Space Detected on 99m Tc-Sestamibi SPECT/CT.
case_report · Level V
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- Record sourced from PubMed, PMID 39876076.
- Also identified by DOI 10.1097/RLU.0000000000005696.
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Abstract
A 77-year-old woman was diagnosed with primary hyperparathyroidism, and initial cervical ultrasonography found no parathyroid lesion, and she was referred to the nuclear medicine unit for dual-phase 99m Tc-sestamibi (MIBI) scan. The scintigraphy unveiled heterogeneous uptake patterns across bilateral thyroid lobes, corresponding to the thyroid nodules, alongside a marked focal uptake with delayed tracer washout in the right oral region. The SPECT/CT pinpointed a MIBI-avid nodule within the right parapharyngeal space, indicative of parathyroid ectopia. An ectopic parapharyngeal parathyroid adenoma is exceptionally rare. MIBI scan plays a pivotal role in detection of ectopic parathyroid adenoma at unexpected sites.
Medical subject headings
- Technetium Tc 99m Sestamibi
- Parathyroid Neoplasms
- Single Photon Emission Computed Tomography Computed Tomography
- Adenoma
- Parapharyngeal Space
- Tomography, Emission-Computed, Single-Photon