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

Intestinal intussusception caused by metastatic tumor is uncommon. Symptomatic small bowel metastases from lung cancer have been rarely reported. Here we report a case of intussusception with gastrointestinal bleeding induced by jejunal metastasis of non-small cell lung cancer with a review of the literature. A 52-year-old man was admitted to our hospital because of melena. He had underwent right pneumonectomy and received systemic chemotherapy with radiotherapy for squamous cell lung cancer. Esophagogastroduodenoscopy and colonoscopy failed to reveal bleeding focus. Abdominal CT scan revealed jejunal intussusception and histologic examination of resected jejunum showed metastatic mass from lung cancer. In patients with small bowel obstruction and history of malignancies, possibility of small bowel metastatic tumor should be considered.
Gastrointestinal Hemorrhage/*etiology ; Humans ; Intussusception/*etiology/radiography/surgery ; Jejunal Diseases/*etiology/radiography/surgery ; Jejunal Neoplasms/complications/pathology/*secondary ; Lung Neoplasms/*complications/pathology/surgery ; Male ; Middle Aged ; Tomography, X-Ray Computed

PURPOSE: Intussusception is a very common pediatric problem and needs early management. This study evaluated the risk factors of intussusception in infants and children for early diagnosis and treatment. METHODS: 216 cases of pediatric intussusception occurring between 1993 and 1999 in Mokpo Catholic Hospital were investigated retrospectively. 164 patients treated with barium reduction comprised the barium reduction (BR) group and 52 patients treated with manual reduction or bowel resection was operation (OP) group. RESULTS: The age incidence under 1 year old was 108 patients (65.9%) in BR group, 45 patients (86.5%) in OP group. Male to female ratio was 1.8:1 in BR and 1.7:1 in OP, respectively. In the seasonal distribution spring was more common in both group (34.1%, 34.6%). 60.4% in BR group, 76.9% in OP group were revealed leukocytosis above 10.000/mm3 in serum. Previous combined diseases were upper respiratory infection (31.7%, 42.3%), acute gastroenteritis (1.2%, 1.9%) and multiple familial polyposis (0.5% in BR group). The frequent symptoms and signs were bloody stool (86.0%,92.3%), abdominal pain and irritability (86.6%, 82.7%), vomiting (76.9%, 67.3%), and abdominal mass (56.7%, 76.9%). Tachycardia was 12.2% in BR and 44.2% in OP. In plain abdominal radiography, intestinal obstructive pattern was present in 5.5% of BR group and 53.8% of OP group. Success rate of barium reduction within 24 hours after symptom appearance was 82.3%. Within 24-48 hours was 61.1%, above 48 hours was 25%. There was a statistically significant difference between BR group and OP group of patients under 1 year old, with tachycardia, symptoms for longer than 48 hours and obstructive pattern on plain abdominal radiography (p<0.05). Of surgical cases, 84.6% were idiopathic. The common anatomical type was ileo-colic type (53.9%). The methods of operation were manual reduction (94.2%) and bowel resection (5.8%). Postoperative complications occurred in 4 cases; 3 cases of wound infection and 1 case of pulmonary complication. Recurrence rate was 12.8% in BR group. CONCLUSION: Risk factors of high incidence such as under 1 year old, severe obstructive pattern on the plain abdominal radiograph, symptoms for longer than 48 hours, and tachycardia, were related with a low success rate of barium reduction. Therefore, a gentle barium enema is recommended in high risk patients for diagnosis and prompt surgical intervention.
Abdominal Pain ; Barium ; Child* ; Diagnosis ; Early Diagnosis ; Enema ; Female ; Gastroenteritis ; Humans ; Incidence ; Infant* ; Intussusception* ; Jeollanam-do ; Leukocytosis ; Male ; Postoperative Complications ; Radiography, Abdominal ; Recurrence ; Retrospective Studies ; Risk Factors ; Seasons ; Tachycardia ; Vomiting ; Wound Infection