Key result
18F-FDG PET/CT identifies an asymptomatic right atrial mass, pathologically confirmed as rare intimal sarcoma.
Why the study?
Right atrial intimal sarcoma is an extremely rare and very malignant tumor with limited documented cases and imaging characterization.
Case Report (n=1)
18F-FDG PET/CT is useful in identifying and characterizing rare malignant cardiac tumors such as right atrial intimal sarcoma.
May aid incidental detection of rare atrial sarcomas; leaves open broader PET/CT utility pending larger studies.
A right atrial mass was discovered with transthoracic cardiac ultrasound in a complaint-free, 81-year-old man at his yearly cardiological checkup. Further investigation of the mass with transesophageal cardiac ultrasound showed a well-defined nodular mass of approximately 3 × 3 cm, in close proximity to the posterior wall of the right atrium. The patient underwent an F-FDG PET/CT, which showed a right atrial mass with very high FDG uptake, suggesting a malignant process. The mass was surgically removed, and anatomopathological assessment revealed an intimal sarcoma, which is a very malignant tumor and an extremely rare occurrence at this location.
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Janßen et al. (2020) conducted a case report in Right atrial intimal sarcoma (n=1). 18F-FDG PET/CT and surgical excision was evaluated on Pathological diagnosis of the right atrial mass. 18F-FDG PET/CT identified a highly FDG-avid right atrial mass in an asymptomatic 81-year-old man, which was surgically removed and confirmed to be an extremely rare intimal sarcoma.
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