Saccular aneurysm of the descending thoracic aorta. Presenting as a right chest mass.
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Biomedical subjects
Publications and source records attributed to M L Dillon.
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Tc-99m HM-PAO has been used as a tumor-imaging agent because this radiopharmaceutical localizes in tumor masses, including lung carcinoma. We present a smoker with giant-cell-carcinoma of the lung whose Tc-99m MAA and Tc-99m HM-PAO lung images showed a photon-deficient area corresponding to the tumor mass. Rapid growth of large cell carcinoma leading to tumor necrosis and interruption of blood flow resulted in a localized photon deficient area in diffuse lung uptake secondary to a long smoking history on a Tc-99m HM-PAO lung images.