Case report: Metastatic myxoid liposarcoma arising from the right atrium extends as cardiac tamponade-A rare case of atrial oncology.

The reported incidence of liposarcomas in ~2,000 cases annually results in about 30% of myxoid liposarcomas. Cardiac myoxid liposarcomas are very rare; their presentation could be cardiac tamponade, due to direct compression of the tumor and/or pericardial effusion. In this report, we describe a patient who presented with pericardial effusion secondary to myoxid liposarcomas from the right atrium, an extremely rare presentation of liposarcomas in the heart. We also present non-invasive imaging through echocardiography, CECT thorax and FDG PET scans, followed by a CT-guided mass biopsy. Histopathology of the right atrial mass demonstrated myxoid liposarcoma positive for the S100 tumor marker.

Neurocardiogenic syncope during a routine colonoscopy: an uncommon malignant presentation.

Neurocardiogenic syncope (NCS) is a common clinical entity. Most of these patients are managed medically by internists and general practitioners. Though NCS is frequently a benign disease, a malignant form of this disorder with episodes of prolonged cardioinhibition culminating in asystole is described. Here, we describe a 52-year-old woman who had such a life threatening malignant form of arrhythmia during a routine colonoscopy and review the literature of similar cases.