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A Case of Primary Pulmonary Artery Sarcoma Mimicking Pulmonary Embolism: Role of PET/CT for Differential Diagnosis

Sang-Soo Lim, Koo-Hyun Hong, Jae-Min Shin, Youn Seup Kim, Young‐Koo Jee, Na Hye Myoung, Seok Gun Park, Jae Seuk Park

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Abstract

Primary pulmonary artery sarcoma is a rare malignant tumor arising from the pulmonary artery.Diagnosis of primary pulmonary artery sarcoma is quite difficult and the conditon is often misdiagnosed as a more common disease, such as a pulmonary embolism.PET can help in diagnosing a pulmonary artery sarcoma due to the increased uptake of 18 F-FDG in the area of the tumor.However, the poor anatomic resolution of PET has limited its clinical applications in pulmonary vascular disease.The recently developed PET/CT is the fusion of PET and CT that improves the anatomical resolution of PET.We report a case of a primary pulmonary artery sarcoma mimicking a pulmonary embolism that was diagnosed with PET/CT and confirmed with a surgical resection.

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Primary pulmonary artery sarcoma is a rare malignant tumor arising from the pulmonary artery.Diagnosis of primary pulmonary artery sarcoma is quite difficult and the conditon is often misdiagnosed as a more common disease, such as a pulmonary embolism.PET can help in diagnosing a pulmonary artery sarcoma due to the increased uptake of 18 F-FDG in the area of the tumor.However, the poor anatomic resolution of PET has limited its clinical applications in pulmonary vascular disease.The recently developed PET/CT is the fusion of PET and CT that improves the anatomical resolution of PET.We report a case of a primary pulmonary artery sarcoma mimicking a pulmonary embolism that was diagnosed with PET/CT and confirmed with a surgical resection.

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Available abstract

Primary pulmonary artery sarcoma is a rare malignant tumor arising from the pulmonary artery.Diagnosis of primary pulmonary artery sarcoma is quite difficult and the conditon is often misdiagnosed as a more common disease, such as a pulmonary embolism.PET can help in diagnosing a pulmonary artery sarcoma due to the increased uptake of 18 F-FDG in the area of the tumor.However, the poor anatomic resolution of PET has limited its clinical applications in pulmonary vascular disease.The recently developed PET/CT is the fusion of PET and CT that improves the anatomical resolution of PET.We report a case of a primary pulmonary artery sarcoma mimicking a pulmonary embolism that was diagnosed with PET/CT and confirmed with a surgical resection.

Key concepts: Medicine, Pulmonary embolism, Differential diagnosis, Pulmonary artery, Radiology, Sarcoma, Cardiology, Internal medicine

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A Case of Primary Pulmonary Artery Sarcoma Mimicking Pulmonary Embolism: Role of PET/CT for Differential Diagnosis — Research Paper | ScholarLens