A GIANT SOLITARY FIBROUS TUMOR OF THE PLEURA DEVELOPING FROM THE DIAPHRAGMA WITH LIVER INVASION-REPORT OF A CASE-

Abstract

A 48-year-old woman, showing a huge tumor shadow on the right side of the chest by roentgenogram, was admitted to our hospital. CT-scan showed that the tumor, 20cm in diameter, ocuppied the lower half of the right thoracic cavity, and expanded to the liver. MRI suggested, direct invasion of the liver by the lung tumor through the diaphragma. From angiographic examination, the main vessels of the tumor arose from the right inferior phrenic artery. The inferior vena cava, the right inferior pulmonary artery and vein, and the right hepatic vein were intact. The pathologic diagnosis of the specimen obtained by percutaneous needle biopsy was a fibrous tumor of the pleura. An operation was performed using a midsternal and right subcostal incision to resect the tumor completely. The tumor was 19.5×16.5cm in size and 2056g in weight. Pathological features were compatible with fibrous tumor of the pleura, and results of immuno-pathological examination was Desmin & cytokeratin negative, but vimentin & CD34 positive.