Key result
FDG-PET/CT incidentally identifies thoracic aortic dissection initially misdiagnosed as an esophageal mass.
Why the study?
Identifying and diagnosing aortic dissection on PET/CT without contrast agents remains challenging and is prone to misdiagnosis or being overlooked when the examination focuses on an unrelated clinical objective.
Case Report (n=1)
Thoracic aortic dissection can present as an FDG-avid lesion on non-contrast PET/CT and may be misdiagnosed as an esophageal neoplasm or extramedullary plasmacytoma.
Answers are grounded in this paper and cite their sources.
Awareness of incidental aortic dissection on non-contrast PET/CT may reduce misdiagnosis; leaves open prospective validation of FDG patterns.
The identification and diagnosis of aortic dissection on PET/CT remain challenging without the use of contrast agents. Such cases are prone to misdiagnosis or being overlooked, particularly when the examination is focused on an unrelated primary clinical objective. We present a case of thoracic aortic dissection that was incidentally detected on initial PET/CT during the further evaluation of suspected multiple myeloma. The FDG-avid lesion was initially mistaken for an esophageal mass, with differential diagnoses including extramedullary plasmacytoma associated with multiple myeloma and primary esophageal neoplasm.
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Han et al. (2026) conducted a case report in Thoracic aortic dissection in a patient evaluated for suspected multiple myeloma (n=1). FDG-PET/CT was evaluated on Incidental detection of thoracic aortic dissection. FDG-PET/CT incidentally detected a thoracic aortic dissection initially mistaken for an esophageal mass in 1 patient evaluated for suspected multiple myeloma.
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