Enterovesical fistula is a relatively uncommon complication of colorectal and pelvic malignancies, diverticulitis, inflammatory bowel disease, radiotherapy, and trauma in Asian countries. A case of vesico-ileosigmoidal fistula and a literature review of this disease in Japan are presented. A 70-yr-old male was referred with complaints of urinary pain and pneumaturia. On admission, urinary tract infection and pneumaturia were presented. A barium enema demonstrated multiple diverticulum in his sigmoid colon and the passage of contrast medium into the bladder and ileum. Under the diagnosis of vesico-ileosigmoidal fistula due to suspected diverticulitis of the sigmoid colon, sigmoidectomy and partial resection of the ileum with partial cystectomy were performed. The histopathology revealed diverticulosis of the sigmoid colon with diverticulitis and development of a vesico-ileosigmoidal fistula. No malignant findings were observed. Until the year 2000, a total of 173 cases of vesico-sigmoidal fistula caused by diverticulitis had been reported in Japan. Pneumaturia and fecaluria are the most common types, presenting symptoms in 63% of the cases. Computed tomography, with a sensitivity of 40% to 100%, is the most commonly used diagnostic study. For patients with vesico-sigmoidal fistula, resection of the diseased sigmoid colon and partial cystectomy with primary anastomosis are the safest and most acceptable procedures, leading to the best results.
Aged ; Anastomosis, Surgical ; Bladder Fistula/*etiology/*pathology/surgery ; Colon, Sigmoid/pathology ; Cystectomy ; Diverticulitis/*complications/*pathology/surgery ; Human ; Ileum/pathology ; Male

With the development of minimal invasive surgery including laparoscopic and robot surgery, colonoscopic tattooing of colonic lesions is becoming more important to ensure easy localization of the lesion during surgery. Lack of accurate lesion identification during minimal invasive surgery may lead to resection of wrong segment of the bowel. In this article, some topics including proper materials, injection technique, and safety of colonoscopic tattooing are reviewed.
Colon/*pathology ; Colorectal Neoplasms/diagnosis/pathology/surgery ; Humans ; Laparoscopy ; Preoperative Care ; *Tattooing/standards

OBJECTIVE: The aim of this paper was to describe the operative details for en bloc removal of the adnexal tumor, uterus, pelvic peritoneum, and rectosigmoid colon with colorectal anastomosis in advanced epithelial ovarian cancer patients with widespread pelvic involvement. METHODS: The patient presented with good performance status and huge pelvic tumor extensively infiltrating into adjacent pelvic organs and obliterating the cul-de-sac. The patient underwent en bloc pelvic resection as primary cytoreductive surgery. En bloc pelvic resection procedure is initiated by carrying a circumscribing peritoneal incision to include all pan-pelvic disease within this incision. After retroperitoneal pelvic dissection, the round ligaments and infundibulopelvic ligaments are divided. The ureters are dissected and mobilized from the peritoneum. After dissecting off the anterior pelvic peritoneum overlying the bladder with its tumor nodules, the bladder is mobilized caudally and the vesicovaginal space is developed. The uterine vessels are divided at the level of the ureters, and the paracervical tissues (or parametria) are divided. The proximal sigmoid colon is divided above the most proximal extent of gross tumor using a ligating and dividing stapling device. The sigmoid mesentery is ligated and divided including the superior rectal vessels. The pararectal and retrorectal spaces are further developed and dissected down to the level of the pelvic floor. The posterior dissection is progressed and moves to the right and then to the left of the rectum. The rectal pillars including the middle rectal vessels are ligated and divided. Hysterectomy is completed in a retrograde fashion. The distal rectum is divided using a linear stapler. The specimen is removed en bloc with the uterus, adnexa, pelvic peritoneum, rectosigmoid colon, and tumor masses leaving a macroscopically tumor-free pelvis. Colorectal anastomosis was completed using stapling device. RESULTS: En bloc pelvic resection was performed by total abdominal hysterectomy, bilateral salpingo-oophorectomy, pelvic peritonectomy, and rectosigmoid colectomy with colorectal anastomosis using a stapling device. Complete clearance of pelvic disease leaving no gross residual disease was possible using en bloc pelvic resection. CONCLUSION: En bloc pelvic resection is effective for achieving maximal cytoreduction with the elimination of the pelvic disease in advanced primary ovarian cancer patients with extensive pelvic organ involvement.
Anastomosis, Surgical ; Colon, Sigmoid/pathology/surgery ; Disease Progression ; Female ; Humans ; Hysterectomy/*methods ; Neoplasm Invasiveness ; Neoplasm, Residual ; Neoplasms, Glandular and Epithelial/*pathology/*surgery ; Ovarian Neoplasms/*pathology/*surgery ; Ovary/pathology/surgery ; Pelvic Exenteration/*methods ; Pelvis/pathology/surgery ; Rectum/pathology/surgery ; Salpingectomy ; Surgical Stapling

Adolescent ; Colon, Ascending ; pathology ; Colonic Neoplasms ; pathology ; surgery ; Colonic Polyps ; pathology ; surgery ; Diagnosis, Differential ; Follow-Up Studies ; Ganglioneuroma ; pathology ; surgery ; Humans ; Male

Splenic flexure colon cancer occurs at a relatively lower rate than colon cancer of other sites. It is also associated with more advanced disease and higher rate of acute obstruction. The splenic flexure receives blood supply from both superior and inferior mesenteric arteries (SMA and IMA), and therefore has lymphatic drainage to both areas. The blood supply is also highly variable, causing difficulties in determining the main feeding vessels and the main direction of lymph drainage. Few studies with limited cases focused on this specific tumor site with respect to the patterns of lymph node spread, especially the main lymph node status and the value of its dissection. The lack of information limits the development of a consensus on the extent of surgical resection and lymphadenectomy. Adequate mobilization of the colon facilitates a sufficient length of bowel resection and the high ligation of feeding arteries from both SMA and IMA. Further evidence on the chnoice of procedures and the extent of lymph node dissection need multicenter collaboration, with the use of modern techniques, including CT 3D reconstruction of the colon and angiography, as well as intraoperative fluorescent real-time imaging of lymph nodes.
Colon, Transverse/surgery* ; Colonic Neoplasms/surgery* ; Humans ; Laparoscopy ; Lymph Node Excision/methods* ; Lymph Nodes/pathology* ; Mesenteric Artery, Inferior/surgery*

Animals ; Colon ; pathology ; Dogs ; Female ; Graft Survival ; Intestinal Mucosa ; pathology ; transplantation ; Mouth Mucosa ; pathology ; transplantation ; Reconstructive Surgical Procedures ; Urethra ; surgery

OBJECTIVETo discuss surgical treatment of right colon carcinoma of hepatic flexure invading the duodenum.

METHODSSixty-five patients with right colon carcinoma of hepatic flexure invading the duodenum, treated in our department from 1987 to 2007, were included in this study. Their clinicopathological data were retrospectively reviewed and analyzed. All the cases were divided into three types (local invasion, regional invasion, and cancer with internal fistula) according to duodenal defect, including local invasion (< 2.0 cm), wide invasion (> 2.0 cm) and the presence of internal fistula.

RESULTS25 patients with local invasion underwent en bloc resection of the duodenal wall. Pedicled ileal flap was used to cover the large duodenal defect measuring 2.0 - 3.0 cm in 5 patients. Dudenojejunostomy was used to reconstruct the large defect measuring more than 5 cm in 3 patients. Conservative resection of right-sided colon was performed in 18 patients with wide invasion. 4 patients underwent pancreaticoduodenectomy combined with right hemicolectomy for colon cancer involving the pancreatic head. 10 underwent duodenal diverticularization. One patient with anastomotic leakage healed within 3 weeks. Other patients were cured without postoperative complications. The total 3-year and 5-year survival rates after surgery were 53.8% and 9.2%, respectively.

CONCLUSIONThe surgical procedure to be performed is usually decided according to the cancer location, extent, and duodenal defect and invasion, which are important for prolonging life time, improving of quality of life and prognosis in these patients.

Adenocarcinoma ; pathology ; surgery ; Adenocarcinoma, Mucinous ; pathology ; surgery ; Adult ; Aged ; Colectomy ; methods ; Colon, Ascending ; pathology ; surgery ; Colonic Neoplasms ; pathology ; surgery ; Duodenum ; pathology ; surgery ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Neoplasm Invasiveness ; Pancreaticoduodenectomy ; Quality of Life ; Retrospective Studies ; Survival Rate

Colonic arteriovenous malformation (AVM) is one of the causes of lower gastrointestinal bleeding. Unlike small vascular ectasia or angiodysplasia, colonic AVM tends to be solitary, large in size, and identified endoscopically as flat or elevated bright red lesion. Herein, we report a case of non-solitary and small cecal AVMs which were removed by endoscopic biopsy. A 66-yr-old woman was referred for routine gastrointestinal cancer screening. She was suffering from diabetes, hypertension, end-stage renal disease, and anemia of chronic disease. On colonoscopic finding, three semi-pedunculated polyps, less than 5 mm in size, were noticed near to the appendiceal orifice. Since the lesions revealed normal-looking epithelium with converging folds on the cecal base, lesions were diagnosed as inflammatory polyps on gross finding. Three biopsies were taken from each lesion. Bleeding from the biopsied site ceased spontaneously. Histopathologic evaluation demonstrated intramucosal hemorrhage and dilated submucosal vessels which were consistent with polypoid colonic AVMs.
Aged ; Arteriovenous Malformations/*diagnosis/pathology/surgery ; Biopsy ; Cecum/blood supply/pathology ; Colon/*blood supply/pathology ; Colonic Polyps/pathology/*surgery ; Colonoscopy ; Female ; Humans

OBJECTIVETo investigate the possibility of urethral reconstruction with a free colonic mucosal graft.

METHODSTen female dogs underwent a procedure in which the urethral mucosa was totally removed and replaced with a free graft of colic mucosa. A urodynamic study was performed before the operation and sacrifice. The dogs were sacrificed 8 to 16 weeks after the operation for histological examination of the urethra.

RESULTSUrethral stricture developed in 1 dog. The results of urody namic studies showed that the difference in maximum urethral pressure between pre-operation and pre-sacrifice in the remaining 9 dogs was not of significance (P > 0.05). Histological examination revealed that the colonic free mucosa survived inside the urethral lumen of the 9 dogs. Plicae surface and unilaminar cylindric epithelium of the colonic mucosa was observed in dogs sacrificed 8 weeks after the operation. Plicae surface and unilaminar cylindric epithelium of the colonic mucosa was not observed and metaplastic transitional epithelium covered a large proportion of the urethral mucosa in dogs sacrificed 12 weeks after the operation.

CONCLUSIONSUrethral mucosa can be replaced by colonic mucosa without damaging the continence mechanism in female dogs. This technique is useful when local or preputial skin and buccal or bladder mucosa are not available.

Animals ; Colon ; transplantation ; Dogs ; Female ; Intestinal Mucosa ; transplantation ; Urethra ; pathology ; surgery ; Urologic Surgical Procedures

No abstract available.
Colon/pathology/surgery ; Colonoscopy ; Female ; Humans ; Intestinal Perforation/*etiology ; Plastics ; Stents/*adverse effects