title: Sternal uptake of 99mTc-MAA in thoracic outlet syndrome.
abstract: Tc-macroaggregated albumin (MAA) uptake in the vertebrae has been reported in central vein occlusion, although its sternal uptake is rarely seen. We present a case in which Tc-MAA SPECT/CT showed spotty uptake in the sternum. Contrast-enhanced CT revealed marked narrowing of the left subclavian vein at the thoracic outlet with a developed collateral vein running, in the left anterior chest subcutaneous tissue, between the sternum and left axilla. In this case, IV injection of Tc-MAA from the left forearm probably led to bone marrow uptake in the sternum due to retrograde venous flow through the collateral vein.
authors.affiliation: From the Department of Diagnostic Radiology, Keio University School of Medicine, Tokyo, Japan.
authors.forename: Yohji
authors.initials: Y
authors.lastname: Matsusaka
authors.forename: Tadaki
authors.initials: T
authors.lastname: Nakahara
authors.forename: Yu
authors.initials: Y
authors.lastname: Iwabuchi
authors.forename: Masashi
authors.initials: M
authors.lastname: Kameyama
authors.forename: Koji
authors.initials: K
authors.lastname: Murakami
mesh_terms: D000368:Aged; D006801:Humans; D008297:Male; D064847:Multimodal Imaging; D019275:Radiopharmaceuticals; D013249:Sternum / Q000000981:diagnostic imaging*; D013668:Technetium Tc 99m Aggregated Albumin; D013901:Thoracic Outlet Syndrome / Q000000981:diagnostic imaging*; D015899:Tomography, Emission-Computed, Single-Photon; D014057:Tomography, X-Ray Computed
chemical_list: D019275:Radiopharmaceuticals; D013668:Technetium Tc 99m Aggregated Albumin