Case Series: Pericardial gossypibomas detected after cardiovascular surgery: Imaging findings
A 54-year-old male patient was admitted to our hospital with the complaint of cough. Chest radiograph showed a mass on the left side of the heart []. A contrast-enhanced chest CT revealed a sharply defined, rounded, giant mass at the left atrioventricular groove, compressing the left atrium and left ventricle. The mass had a hyperdense, well-enhanced rim with central high-density curvilinear stripes []. Cardiac MRI was performed on a 1.5-T MRI system and demonstrated a lesion with whorled internal configuration on T1- and T2-weighted images and wavy hypointensities on T2-weighted images [Figures and ]. The lesion had a smooth, thick capsula which was hypointense on T1- and T2-weighted images, and enhanced after contrast administration []. Internal component of the lesion did not enhance []. Diffusion-weighted images (DWI) showed no reduction of diffusion excluding an abscess []. We had learned that the patient had bypass surgery 8 months earlier and the lesion was not seen on chest radiograph taken just after surgery. The patient was operated and a surgical gauze sponge was removed.