Increased 99m Tc-MAA Uptake in Supraclavicular Brown Adipose Tissue in a Pediatric Patient With Hereditary Hemorrhagic Telangiectasia.
case_report · Level V
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- Record sourced from PubMed, PMID 41697731.
- Also identified by DOI 10.1097/RLU.0000000000006376 and PMC identifier 13132063.
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Abstract
A 10-year-old boy underwent a whole-body scan using 99mTc-labeled macroaggregated albumin (99mTc-MAA) to evaluate the underlying cause of hypoxemia. The scan demonstrated abnormally increased 99mTc-MAA uptake in the brain, thyroid, kidneys, and metaphyses of long bones-findings consistent with significant intrapulmonary shunting. Subsequent whole-exome sequencing confirmed a diagnosis of hereditary hemorrhagic telangiectasia. Notably, markedly increased 99mTc-MAA uptake was also observed in the supraclavicular brown adipose tissue.
Medical subject headings
- Adipose Tissue, Brown
- Telangiectasia, Hereditary Hemorrhagic
- Technetium Tc 99m Aggregated Albumin