case_images: PMC10837720_01
case_images: Preoperative imaging of the cardiac paragangliomas, which are indicated with a white arrows. (A) Transverse view of computed tomography (CT) scan demonstrating multiple paragangliomas with white arrows. (B) Angiogram of the RCA demonstrating the vascularization of the paranglioma adjacent to the RCA. (C) Transverse view of CT scan showing the paraganglioma near the RCA. (D) Frontal view of CT scan showing the paraganglioma between the RPA and the left atrium. LCA, left coronary artery; RCA, right coronary artery; RPA, right pulmonary artery.
case_images: gr1.jpg
case_images: PMC10837720_01_gr1.jpg
case_images: fig1
case_images: Figure 1, A-D, 4 paragangliomas were localized: near the left main coronary artery (2 cm x 2 cm); in the right atrioventricular groove (2.5 cm x 1.5 cm, Fig. 1, B-C); at the roof of the left atrium (2 cm x 2 cm); and between the right pulmonary artery and the left atrium (1 cm x 1 cm, Fig. 1D). Feeding collaterals from the right coronary artery were visualized during coronary angiography (Fig. 1B).
case_images: Histologic examination of the paragangliomas showed a typical Zellballen pattern. Chromogranin and synaptophysin were strongly positive, and sustentacular cells were positive for S-100 protein staining. H&E, hematoxylin and eosin.
case_images: gr2.jpg
case_images: PMC10837720_01_gr2.jpg
case_images: fig2
case_images: Figure 1, A-D, 4 paragangliomas were localized: near the left main coronary artery (2 cm x 2 cm); in the right atrioventricular groove (2.5 cm x 1.5 cm, Fig. 1, B-C); at the roof of the left atrium (2 cm x 2 cm); and between the right pulmonary artery and the left atrium (1 cm x 1 cm, Fig. 1D). Feeding collaterals from the right coronary artery were visualized during coronary angiography (Fig. 1B). Chromogranin and synaptophysin were strongly positive, and sustentacular cells were positive for S-100 protein staining (Fig. 2).