[A Strategy of Treatment for Perforated Gastric Cancer].

In past reports, the incidence of gastric perforation accounts for 0.08 to 3.6% of all gastric cancers, and the proportion of perforated gastric cancer(PGC)in gastric perforations is 26 to 32%.

[Clinicopathological Examination of 81 Cases Added Gastrectomy for Early Gastric Cancer after ESD].

As a general rule, our department has performed additional gastrectomy with lymph node dissection(radical surgery: RS) for non-curative endoscopic submucosal dissection(ESD)cases. This time, we performed a clinicopathological study on 81 patients who underwent RS after ESD for 10 years from May 2009 to April 2019. Lymph node metastasis(LNM)was observed in 5 cases and local cancer residue(LCR)was observed in 8 cases.

[A Case of Primary Gastric Adenocarcinoma with Enteroblastic Differentiation(GAED)].

Gastric adenocarcinoma with enteroblastic differentiation(GAED)is a rare disease that is classified as a special type in the 15th edition Japanese Classification of Gastric Carcinoma. GAED is considered to have a poor prognosis. We report about a 76-year-old man with GAED who presented with complaints of poor appetite and weight loss.

[The Actual State of Treatment of Gastrointestinal Cancer with Abdominal Aortic Aneurysm in Our Department over the Past Five Years].

With the aging of the population of Japan and Westernization of the dietary life, the number of cases in which cardiovascular diseases are merged in non-cardiac surgery is increasing year by year.Many of the abdominal aortic aneurysms are asymptomatic and it is not uncommon to be discovered accidentally in preoperative examination of non-cardiac surgery.When gastrointestinal surgery involves malignant diseases of the gastrointestinal tract and abdominal aortic aneurysm, the two life prognosis-related diseases are merged, depending on the severity and urgency of the disease for each case, its treatment to determine the priority order.

[Cases of Oncologic Emergency Associated with Colorectal Cancer].

The clinical condition of oncologic emergency associated with colorectal cancer includes hemorrhage, perforation and obstruction. Obstructive colorectal cancer is an oncologic emergency commonly observed in our daily clinical practice. Colonic stent placement for obstructive colorectal cancer is relatively easy and safe and may be considered as an effective treatment method that enables favorable intestinal decompression preoperatively and one-stage resection.

[Partial response of liver metastasis from colon cancer following intermittent oral administration of TS-1 after intra-hepatic arterial single injection of CDDP, doxorubicin and 5-FU].

An intrahepatic arterial injection of CDDP, doxorubicin and 5-FU, followed by 17 courses of oral TS-1 administration (80 mg/day x 14 days, q=28 days), induced a partial response for 9 months after 18 months of stable disease in a 76-year-old male with asynchronous liver metastasis due to ascending colon cancer. TS-1 showed an excellent anticancer effect against colorectal metastatic liver cancers for a long time without loss of QOL or safety.