Resection For Sigmoid Colon Cancer Research Articles

A Case of Richter’s Hernia of the Small Bowel through the Port Site Following Removal of Drains after Laparoscopic-assisted Resection for Sigmoid Colon Cancer.

A Case of Richter’s Hernia of the Small Bowel through the Port Site Following Removal of Drains after Laparoscopic-assisted Resection for Sigmoid Colon Cancer.

Isolated Diaphragmatic Metastasis Originated from Adenocarcinoma of the Colon

Isolated diaphragmatic metastasis arising from colorectal cancer has been reported only one case in the literature presently. Here, we presented a new case and discussed the possible pathogenesis and the treatment options. A 42-year-old male patient had received anterior resection for sigmoid colon cancer. Although the increased serum CEA level was detected 20 months after the surgery, metastatic lesion could not be detected by repeated colonoscopy, CT scan, bone scan or PET scan for 35 months. We could detect a suspicious metastatic lesion on the liver by CT scan at 56 month after the surgery. During a second-look operation, we found a solitary metastasis on the diaphragm and removed it along with the 1 cm tumor-free resection margin. Although the prognosis associated with skeletal metastasis is poor, the complete resection of isolated diaphragmatic metastasis and subsequent appropriate adjuvant chemotherapy may achieve a cure the disease provided that other metastatic lesions are absent.

Prostaglandin E1‐effective, transient‐type ischemic colitis developed after surgical resection of sigmoid colon cancer. A case report

A 55‐year‐old‐man had a laparoscopic resection of the sigmoid colon due to colon cancer with submucosal invasion. After the surgery he suffered ileus and had a laparotomy. Six months later he complained of frequent defecation. Colonoscopy confirmed a circular ulcer extending from the anal side of the anastomosis in the sigmoid colon to the mid rectum. Endoscopic ultrasound demonstrated thickening of all layers of the diseased colon and rectum. We diagnosed ischemic colitis. After intravenous drip infusion of prostaglandin, symptoms and colonic stricture gradually improved. Although abdominal angiography revealed a narrowing of the peripheral sigmoid branch of the inferior mesenteric artery, blood flow was unrestricted. Colonoscopy performed 84 days after discharge revealed an ulcer scar.

A CASE OF METASTASTIC LIVER TUMOR FROM COLON CANCER INFILTRATING AND EMBOLIZING THE BILIALY TRACT

A 61-year-old man was admitted to the hospital because of a hepatic tumor. He had a previous history of high anterior resection for sigmoid colon cancer 2 years earlier US and CT of the abdomen detected an irregular tumor between S5 and S6 segments of the liver. Intra-operative cholangiography revealed absence of the intrahepatic biliary tracts B5a and B5b. From the specimen, the tumor, 1.5 × 1.5 cm in size, infiltrated and embolized B5a and B5b. Histologically the tumor was determined to be a metastasis from Scolon cancer and had infiltrated the biliary tract in an exchange with mucous membrane. It has been reported that a metastatic tumor from colorectal cancer easily infiltrates Glisson's capsule. In cases in which a liver tumor is found near Glisson7s capsule, information about the biliary tract, such as pre-operative ERP or intra-operative cholangiography, is important.

A small mucinous cystadenocarcinoma of the liver detected by a fluid-fluid level on ultrasonography

A case of small, borderline malignant biliary mucinous cystic tumor is presented. The patient initially presented to us 18 months earlier to undergo a sigmoid colon resection for sigmoid colon cancer. At that time, a liver cyst measuring 18 x 12 mm was detected. On a follow-up abdominal ultrasonography study for colon cancer, the liver cyst had enlarged to 21 mm in diameter and contained a fluid-fluid level 18 months after surgery. Histological examination of a needle biopsy specimen indicated possible adenocarcinoma. Lateral segmentectomy of the liver was performed. Histopathologically, the tumor was diagnosed as a mucinous cystic tumor, of border line malignancy, which had originated from a bile duct gland. It contained both mucinous and serous components, which were thought to have caused the formation of a fluid-fluid level within the cyst. In this case, the fluid-fluid level demonstrated by ultrasonography was beneficial in the early detection of a cystic tumor of the liver. This case may be the smallest reported cystadenocarcinoma of the liver yet published.

A CASE OF LIVER METASTASIS (H3) RAPIDLY AFTER CURATIVE RESECTION OF SIGMOID COLON CANCER

We experienced a case of liver metastasis (H3), which was detected 3 months after curative resection of sigmoid colon cancer and thereafter showed a rapid enlargement. Since no hepatic metastasis was suggested by clinical findings before and during the operation, it was clinically regarded and treated as metachronus metastasis. However, there was a possibility that synchronus hepatic metastasis (minute hepatic metastasis) would occur. When calculated back based on the volume of the hepatic metastatic focus at the operation which was obtained from the CEA doubling time and three-dimentional structure on abdominal CT, it was predicted that hepatic focus 1.2cm in diameter might already exist at the operation. At present there is a limit to diagnostic tools for detecting liver metastasis. Consequently, in a case which is predicted to have a possible hepatic metastasis based on clinicopathological and biological malignancy of the primary lesion, we should entertain a possibility of synchronous hepatic metastasis and have strategies for performing adjuvant chemotherapy including preventive intraarterial or intraportal infusion immediatedly after operation.

Solitary Urethral Recurrence of Sigmoid Colon Carcinoma

We report a rare case of a solitary urethral recurrence of sigmoid colon cancer. The recurrence developed 2 years after a radical resection of sigmoid colon cancer invading the bladder. The involved portion of the urethra was resected and an end-to-end anastomosis was made. The patient has been able to urinate per urethram and has remained free of recurrence for 7 years after the urethral resection.