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Updated: Oct 2, 2026

Whole-Mount Immunofluorescence Staining, Confocal Imaging and 3D Reconstruction of the Sinoatrial and Atrioventricular Node in the Mouse
Published on: December 22, 2020
Cystic tumor of the atrioventricular nodal region
Yuichiro Kaminishi1, Yasunori Watanabe, Hiroko Nakata
1Department of Cardiovascular Surgery, Hitachi General Hospital, 2-1-1 Jonan-cho, Hitachi, Ibaraki 317-0077, Japan.
Abstract:
We report a case of a 66-year-old female who presented exertional dyspnea and palpitation. Echocardiography, transesophageal echocardiography and computed tomography showed a right atrial cystic mass attached to the interatrial septum. The patient underwent successful excision of the mass. The histopathological findings confirmed the lesion as a cystic tumor of the atrioventricular nodal region. This is the third known case of this condition diagnosed antemortem and treated successfully with surgical excision.
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