Gross Description -- Right Upper Quadrant Mass


The right lobe of the liver, gallbladder, a portion of the diaphragm, and a wedge resection of the right lower lobe of the lung were received, measuring in total 14.5 x 10.0 x 6.0 cm, 530 grams. The right lobe of the liver was distorted by a 10.0 x 8.5 x 5.5 cm well circumscribed mass covered with a thick fibrous capsule. The capsule of the mass abutted the capsule of the liver. A portion of the diaphragm was firmly adherent to the surface of the right lobe of the liver. A resected wedge of lung was adherent to the diaphragm. On cut section, the mass in the right lobe of the liver (Image 04) was a multicystic tan-white tumor with cysts ranging up to 3.0 cm in greatest dimension. Some cysts contained yellow, clear fluid, while other cysts contained mucinous tan-white material. Fragments of cartilage and bone (Image 05) were identified in the tan-white fibroconnective tissue between cysts. Some cysts contained yellow caseous debris and pieces of hair. Foci of black retinal pigment were present. On cut section, a poorly circumscribed, yellow-white, focally hemorrhagic, soft friable, tumor (Image 06), 4.5 x 3.5 x 3.0 cm, extended from the edge of the main tumor mass in the liver, through the diaphragm into the lung.




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