Abstract
A 62-year-old man was seen at the hospital because of a left abdominal tumor and pain. CT and US demonstrated a cystic tumor of 30 cm in diameter with heterogeneous internal structure and multiple cystic tumors of the liver. Aspiration cytology of the tumor showed round shape cells with clear vesicles. Operation was performed for abdominal fullness of the tumor. The tumor was growing from the stomach, and the multiple liver metastases were revealed. Resection of the tumor with partial gastrectomy was done. Round shape cells were shown in the specimen microscopically. And the tumor appeared to stain by anti-ploriferating cell nuclear antigen. Post-operative couse was stable. Chemoterapy was performed, but the liver metastases had progressed. The patient died 13 months after the operation. Postmotem microscopic findings of the liver metastases were the same as the operative specimen.
In a review of the literature in Japan, leiomyoblastoma of the stomach with liver metastases has a very poor prognosis, with a mean survival of about one year. We should entertain the disease as a probable diagnosis for intraabdominal huge tumors with liver metastases.
