We experienced two cases of hepatic cavernous hemangioma with whitish flat protrusion, which are confirmed on laparoscopy.
Case 1 was a 69-year-old male. He was admitted to our hospital complaining of body weight loss. Abdominal ultrasonography showed hypoechoic mass in the liver. Enhanced CT scan of the liver showed pooling around the tumor and low density area near the surface of the liver. Laparoscopy revealed a hepatic cavernous hemangioma and whitish flat protrusion. The liver needle biopsy specimen showed myxomatous connective tissue.
Case 2 was a 66-year-old female. She was admitted to our hospital complaining of pain in the right hypochondrium. Abdominal ultrasonography showed hyperechoic mass in the liver. Enhanced CT scan of the liver and angiography was useless for definite diagnosis. Laparoscopy revealed a hepatic cavernous hemangioma which grew extrahepatically out of the left lobe. This tumor was extirpated at surgical operation. Histological feature of the resected specimen showed a hepatic cavernous hemangioma. Histological findings of whitish flat protrusion showed fibromyxomatous tissue.
On laparoscopy, whitish flat protrusion in two cases was similar to metastaic liver tumor, including adenocarcinoma. With great care, the difference between these would be known.
