[Unicuspid Aortic Valve Replacement;Report of a Case].

A 45-year-old female was admitted to our hospital due to severe aortic stenosis. Transthoracic and transesophageal echocardiography indicated the aortic valve was bicuspid, but we confirmed that the aortic valve was unicuspid by intraoperative finding. There was 1 open commissure between the left coronary cusp and the noncoronary cusp position. Aortic valve replacement was performed with a mechanical valve, and the postoperative course was uneventful. We report a very rare case of unicuspid aortic valve replacement.

[A case of early gastric cancer responding to adjuvant chemotherapy for treatment of colon cancer].

A 63-year-old man underwent colonoscopy owing to a positive fecal occult blood test, and he was diagnosed as having advanced sigmoid colon cancer. Esophagogastroduodenoscopy( EGD), performed as a preoperative examination, revealed an 8 mm early gastric cancer in the lower body of his stomach. We performed laparoscopic sigmoid colon resection and D3 lymphadenectomy first because the patient had advanced sigmoid colon cancer. The histopathological diagnosis was Stage II; however, vascular invasion was apparent. Some authors have reported that chemotherapy with 5-fluorouracil (FU) is effective against early gastric cancer; therefore, we administered postoperative adjuvant chemotherapy comprising uracil and tegafur( UFT)+Leucovorin( LV) tablets before ESD for early gastric cancer. Two months later, follow-up EGD showed that the gastric cancer had become flat and small. Five months later, it resembled a scar, and examination of a biopsy showed no malignant finding. We continued to administer chemotherapy to the patient for 6 months. Nine months after the discontinuation of chemotherapy, EGD showed only a scar and biopsy revealed no malignant finding.