A broad spectrum of colonic complications can occur in patients with colon cancer. Clinically, some of these complications can obscure the presence of underlying malignancies in the colon and these complications may require emergency surgical management. The complications of the colon that can be associated with colon cancer include obstruction, perforation, abscess formation, acute appendicitis, ischemic colitis and intussusception. Although the majority of these complications only rarely occur, familiarity with the various manifestations of colon cancer complications will facilitate making an accurate diagnosis and administering prompt management in these situations. The purpose of this pictorial essay is to review the CT appearance of the colonic complications associated with colon cancer.
Abdominal Abscess/complications/radiography ; Adult ; Aged ; Aged, 80 and over ; Appendicitis/complications/radiography ; Colitis, Ischemic/complications/radiography ; Colon/*radiography ; Colonic Diseases/complications/radiography ; Colonic Neoplasms/*complications/*radiography ; Female ; Humans ; Intestinal Diseases/*complications/*radiography ; Intestinal Obstruction/complications/radiography ; Intussusception/complications/radiography ; Male ; Middle Aged ; Tomography, X-Ray Computed/*methods

A 74-yr-old woman presented with fever and abdominal discomfort. She was in a septic condition caused by urinary tract infection. Her computed tomogram of the abdomen revealed features of hydronephrosis with ureteral stones in both kidneys. During percutaneous nephrostomies, right pyeloduodenal fistula (PDF) was diagnosed. Elective surgery was originally planned but the patient was in a poor condition to undergo surgery. Instead, 2 times endoscopic clipping and ligation by endoloop were applied with parenteral antibiotics for the fistula lesion. On admission day 30, she was discharged from the hospital after confirmation of no more contrast leakage on fistulography. We reviewed the literature and discuss the etiologies, clinical presentations, diagnosis, and treatment of PDF.
Aged ; Duodenal Diseases/complications/radiography/*surgery ; Female ; Humans ; Hydronephrosis/complications/radiography ; Intestinal Fistula/complications/radiography/*surgery ; Kidney/radiography/surgery ; Kidney Calculi/complications/radiography ; Kidney Diseases/complications/radiography/*surgery ; Ligation ; Urethral Obstruction/complications/radiography ; Urinary Fistula/complications/radiography/*surgery ; Urinary Tract Infections/complications/radiography

A case of high jejunal obstruction due to stricture is reported. It is a rare form of late sequelae of neonatal necrotizing enterocolitis(NEC). Barium contrast study of the small bowel is recommended for earlier diagnosis and treatment before discharge from the hospital, even is an asympto-matic patient.
Child, Preschool ; Constriction, Pathologic ; Enterocolitis, Pseudomembranous/*complications ; Humans ; Intestinal Obstruction/*etiology/radiography/surgery ; Jejunal Diseases/*etiology/radiography/surgery ; Male

No abstract available.
Aged, 80 and over ; Calcinosis/complications/*diagnosis/radiography ; Calculi/complications/*diagnosis/radiography ; Humans ; Ileum/pathology ; Intestinal Diseases/*diagnosis/etiology/radiography ; Intestinal Obstruction/*diagnosis/etiology/radiography ; Male ; Tomography, X-Ray Computed

Intestinal obstruction is a common surgical emergency. Transmesenteric hernia is an unusual cause of bowel obstruction that may result in irreversible damage of the bowel and a fatal outcome. Once incarceration of the bowel occurs, strangulation and gangrene follow immediately. The mortality rate associated with this condition is about 15%, but in the presence of gangrene of the bowel, the mortality rate is more than 50%. An accurate preoperative diagnosis of a transmesenteric hernia is very difficult and rarely made. Therefore, in patients with small bowel obstruction, in the absence of a history of previous surgery to suggest adhesions or an external hernia, the possibility of a transmesenteric hernia must be considered. We describe a case with gangrene of a long segment of the small bowel caused by a transmesenteric hernia through a large defect of small bowel mesentery in a child.
Child ; Diagnosis, Differential ; Female ; Gangrene ; Hernia/complications/*diagnosis/radiography ; Humans ; Ileal Diseases/*diagnosis/radiography/surgery ; Intestinal Obstruction/etiology/radiography ; Intestine, Small/*pathology/surgery ; Mesentery ; Tomography, X-Ray Computed

Vesicoenteric fistula is a rare complication of bladder squamous cell carcinoma. We report the case of a 70-year-old male who complained of painless, total gross hematuria. Abdominopelvic computed tomography (CT) revealed an approximately 2.7-cm lobulated and contoured enhancing mass in the bladder dome. We performed partial cystectomy of the bladder dome after transurethral resection of the bladder. The biopsy result was bladder squamous cell carcinoma, with infiltrating serosa histopathologically, but the resection margin was free. Postoperatively, follow-up CT was done after 3 months. Follow-up CT revealed an approximately 4.7-cmx4.0-cm lobulated, contoured, and heterogeneous mass in the bladder dome. A vesicoenteric fistula was visible by cystography. Here we report this case of a vesicoenteric fistula due to bladder squamous cell carcinoma.
Aged ; Carcinoma, Squamous Cell/*complications/pathology/radiography ; Fatal Outcome ; Humans ; Intestinal Fistula/*etiology/radiography ; Male ; Sigmoid Diseases/*etiology/radiography ; Tomography, X-Ray Computed ; Urinary Bladder Fistula/*etiology/radiography ; Urinary Bladder Neoplasms/*complications/pathology/radiography

Arterio-enteric fistula is a very rare cause of massive lower gastrointestinal hemorrhage. We report here on a case of massive hematochezia caused by iliac arterio-colic fistula in a 60-year-old woman who had a recent history of spinal surgery for herniated nucleus pulposus. Abdomen computed tomography showed the extravasation of radiocontrast media from right iliac artery encased by an intraabdominal abscess into the adjacent dilatated colon. Also, diagnostic angiography revealed the active extravasation of radiocontrast media via a fistula between right iliac artery and colon. Although successful endovascular exclusion of the fistula with stent graft and coils was performed, disseminated intravascular coagulation and multi-organ failure were developed.
Colonic Diseases/complications/*diagnosis ; Female ; Gastrointestinal Hemorrhage/*etiology ; Humans ; Iliac Artery/*radiography ; Intestinal Fistula/complications/*diagnosis ; Middle Aged ; Stents ; Tomography, X-Ray Computed ; Vascular Fistula/complications/*diagnosis

DBJECTIVE: To evaluate the efficacy of newly designed covered and non-covered coated colorectal stents for colonic decompression. MATERIALS AND METHODS: Twenty-six patients, (15 palliative cases and 11 preoperative) underwent treatment for the relief of colorectal obstruction using metallic stents positioned under fluoroscopic guidance. In 24 of the 26, primary colorectal carcinoma was diagnosed, and in the remaining two, recurrent colorectal carcinoma. Twenty-one patients were randomly selected to receive either a type A or type B stent; for the remaining five, type C was used. Type A, an uncovered nitinol wire stent, was lightly coated to ensure structural integrity. Type B (flare type) and C (shoulder type) stents were polyurethane covered and their diameter was 24 and 26mm, respectively. The rates of technical success, clinical success, and complications were analyzed using the chi-square test, and to analyse the mean period of patency, the Kaplan-Meier method was used. RESULTS: Thirty of 31 attempted placements in 26 patients were successful, with a technical success rate of 96.8% (30/31) and a clinical success rate of 80.0% (24/30). After clinically successful stent placement, bowel decompression occurred within 1-4 (mean, 1.58+/-0.9) days. Five of six clinical failures involved stent migration and one stent did not expand after successful placement. In the preoperative group, 11 stents, one of which migrated, were placed in ten patients, in all of whom bowel preparation was successful. In the palliative group, 19 stents were placed in 15 patients. The mean period of patency was 96.25+/-105.12 days: 146.25+/-112.93 for type-A, 78.82+/-112.26 for type-B, and 94.25+/-84.21 for type-C. Complications associated with this procedure were migration (n=6, 20%), pain (n=4, 13.3%), minor bleeding (n=5, 16.7%), incomplete expansion (n=1, 3.3%), and tumor ingrowth (n=1, 3.3%). The migration rate was significantly higher in the type-B group than in other groups (p=0.038). CONCLUSION: Newly designed covered and non-covered metallic stents of a larger diameter are effective for the treatment of colorectal obstruction. The migration rate of covered stents with flaring is higher than that of other types. For evaluation of the ideal stent configuration for the relief of colorectal obstruction, a clinical study involving a larger patient group is warranted.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Colonic Diseases/radiography/*therapy ; Colorectal Neoplasms/*complications ; Equipment Design ; Female ; Human ; Intestinal Obstruction/radiography/*therapy ; Male ; Middle Age ; Palliative Care ; Rectal Diseases/radiography/*therapy ; *Stents ; Support, Non-U.S. Gov't

Erlotinib is accepted as a standard second-line chemotherapeutic agent in patients with non-small cell lung cancer who are refractory or resistant to first-line platinum-based chemotherapy. There has been no previous report of bowel perforation with or without gastrointestinal metastases related to erlotinib in patients with non-small cell lung cancer. The exact mechanism of bowel perforation in patients who received erlotinib remains unclear. In this report, we report the first case of enterocutaneous fistula in a female patient with metastatic non-small cell lung cancer 9 months, following medication with erlotinib as second-line chemotherapy.
Aged ; Antineoplastic Agents/*adverse effects/therapeutic use ; Carcinoma, Non-Small-Cell Lung/complications/*drug therapy ; Female ; Humans ; Intestinal Fistula/*chemically induced/complications/radiography/surgery ; Intestinal Perforation/*chemically induced/complications/radiography/surgery ; Protein Kinase Inhibitors/*adverse effects/therapeutic use ; Quinazolines/*adverse effects/therapeutic use ; Sigmoid Diseases/*chemically induced/complications/radiography/surgery

The eventration of diaphragm is usually found incidentally on chest X-ray or sometimes presented as acute gastric volvulus. However, colonic volvulus on splenic flexure area complicated by diaphragmatic eventration is extremely rare. A 25 year old man complained of upper abdominal pain for three days. He had a history of brain injury during infant period, and had epilepsy and mental retardation. Plain chest X-ray showed left diaphragmatic eventration and marked dilatation of colon on splenic flexure area which had not been changed for last three years. Barium enema showed bird beak appearance on distal colon near the splenic flexure. Colonoscopic reduction failed. After decompression with rectal and nasogastric tubes, colonic volvulus was relieved. To prevent the recurrence of volvulus, we performed segmental resection of left colon including splenic flexure area and repaired the left diaphragmatic eventration. After the operation, the patient had no further recurrent episode of volvulus although ileus persisted.
Adult ; Barium Sulfate/diagnostic use ; Chronic Disease ; *Colon, Transverse ; Colonic Diseases/*radiography/surgery ; Diaphragmatic Eventration/*complications/radiography/surgery ; Humans ; Intestinal Volvulus/etiology/*radiography/surgery ; Male ; Recurrence ; Tomography, X-Ray Computed