Extracorporeal shock wave lithotripsy (ESWL) represents the preferred treatment for most upper ureteric and renal calculi. Complication rates associated with ESWL are low, justifying the enthusiasm and acceptance of this treatment modality. We report a case of abdominal aortic pseudoaneurysm due to ESWL. A 47-year-old man had undergone ESWL treatment for ureteric calculi since 1990. He was admitted to our hospital because of lumbar pain. Physical examination revealed a pulsatile mass in his abdomen. Abdominal CT scan showed an abdominal aortic aneurysm (5.3cm in diameter). Angiography showed a fusiform aneurysm of the infrarenal abdominal aorta. Y-graft replacement was performed after aneurysm resection. Histological examination revealed that it was a pseudoaneurysm. The patient had no history of trauma, inflammation or operation except ESWL. This is the first report of abdominal aortic pseudoaneurysm due to ESWL.

Between September 1972 and December 1987, 808 gastric cancer patients were treated at our hospital. The male/female ratio was 1.7. Gastric resection was performed on 88% of the patients, while curative resection was performed on 59.2%. The operative mortarity rate was 1.8%.
In patients undergoing surgery, the cumulative 5-year survival rates according to stage were 96.4% for stage 1, 68.6% for stage 2, 48.7% for stage 3 and 4.5% for stage 4.
With the spread of a mass screening, many cases of early gastric cancer have been detected recently. However, the incidence of advance cancer increased with age. This suggests the necessity of encouraging the aged to participate in the mass screening. Though gastrectomy is safety procedure of encouraging the aged to participate in the mass screening. Though gastrectomy is safety procedure in old patients over 75 years of age, its indications should be evaluated taking into consideration the quality of the patient's life.

We reviewed 338 cases of colorectal cancer treated in our clinic since 1973. On these patients, 62% were aged 60 years or older.
By location, the malignant tumor was found most frequenty in the rectum, followed by the sigmoid colon.
Resection was perforoed in 94.3%, of the patients with curative resection accounted for 68.3%. In the curative resection group the cumulative 5-year and 10-year survival rates were 77% and 65, 9%, respectively.
Early colorectal cancer was detected in only 26 patients. Mass screening for colorectal cancer using occult blood tests of feces had just recently started in our communities. Thus, further efforts to detect early colorectal cancer are needed.