Abstract
A rare case of gastric cancer showing an exogastric growth is repoted, together with a revie of the literature in reference to the common characteristic features to the disease.
A 76-year-old man visited our hospital with the chief complaints of a rapid enlargement of left upper abdominal mass, poor appetite, upper abdominal pain, and anemia. Abdominal ultrasonography, X-ray film of the stomach, CT, and angiography revealed an exogastric groth type of tumor. Operation was carried out and disclosed that the tumor growing from the pyloric antrum with a lumen was a giant exogastric growth type as large as 10×13×13 cm weighed 1, 000g. Macroscopically pylorectomy and excision of lesion of transverse colon could lead to a curative resection. Histologic examinations revealed undifferentiated carcinoma (solid carcinoma). On 11th month after surgery the patient experienced the recurrence and died.
Common characteristic features to the disease are: that the tumor rapidly increase; commonly occupies the greater cuvature of pyloric antrum; invades the other organ, especially the transverse colon; and is enough resectable for its large mass. In addition, the tumors are histologically determined as undifferentiated carcinoma in more than half of the cases; and frequently classified into medullary type of framework. The prognosis is as poor asthat almost patients die within one year.
