INTRACAVAL AND INTRACARDIAC EXTENSION OF MALIGNANT THYMOMA

A case of malignant thymoma presenting as the superior vena cava syndr ome is reported. A 56-year old male was admitted with superior vena ca va syndrome. CT and NMR-CT scan showed a solid homogenous superior med iastinal mass; which filled the lumen of the superior vena cava and th e right atrium. A biopsy of the right atrial mass showed myxoma, and o peration was performed. Histopathologically the tumor was diagnosed as thymoma. Intracaval and intracardiac extension of a thymoma is very r are.