INTRODUCTION: Acute colonic intussusception occurring in the absence of organic cause is uncommon in adults. PRESENTATION OF CASE: We report acute colonic intussusception in a 46-year-old female; clinical evidence of a palpable mass, abdominal pain and bloody mucoid stools appeared a few hours after hospital admission. Multislice CT-scan confirmed the clinical diagnosis and surgical exploration revealed right colonic obstruction caused by intussusception of the cecum into the ascending colon. Right hemicolectomy was performed and histopathological examination did not reveal any causative pathology. DISCUSSION: Intussusception remains a rare condition in adults, representing 1-5% of bowel obstruction and accounting for 0.003-0.02% of all hospital admissions. Intussusception occurs more frequently in the small (50-80%) than in the large bowel (12-50%). It is estimated that approximately 90% of intussusceptions in adults are secondary to an anatomical or pathological condition, of which more than half are malignant. Idiopathic cases are the exception in adults. The clinical presentation of adult intussusception differs considerably from the classic pediatric presentation of abdominal pain, palpable mass, and blood per rectum, which is rarely seen in adults. A pre-operative CT-scan showed a 10cm intussuscepted segment of right colon. Surgical resection was considered mandatory because of severe bowel obstruction, and the theoretical possibility of occult malignancy. This approach was vindicated by the presence of widespread ischemic lesions in the wall of the resected bowel, without any obvious lead point. CONCLUSION: There are few reports in the medical literature of acute colonic intussusception occurring in the absence of organic cause in adults.
INTRODUCTION: Acute colonic intussusception occurring in the absence of organic cause is uncommon in adults. PRESENTATION OF CASE: We report acute colonic intussusception in a 46-year-old female; clinical evidence of a palpable mass, abdominal pain and bloody mucoid stools appeared a few hours after hospital admission. Multislice CT-scan confirmed the clinical diagnosis and surgical exploration revealed right colonic obstruction caused by intussusception of the cecum into the ascending colon. Right hemicolectomy was performed and histopathological examination did not reveal any causative pathology. DISCUSSION: Intussusception remains a rare condition in adults, representing 1-5% of bowel obstruction and accounting for 0.003-0.02% of all hospital admissions. Intussusception occurs more frequently in the small (50-80%) than in the large bowel (12-50%). It is estimated that approximately 90% of intussusceptions in adults are secondary to an anatomical or pathological condition, of which more than half are malignant. Idiopathic cases are the exception in adults. The clinical presentation of adult intussusception differs considerably from the classic pediatric presentation of abdominal pain, palpable mass, and blood per rectum, which is rarely seen in adults. A pre-operative CT-scan showed a 10cm intussuscepted segment of right colon. Surgical resection was considered mandatory because of severe bowel obstruction, and the theoretical possibility of occult malignancy. This approach was vindicated by the presence of widespread ischemic lesions in the wall of the resected bowel, without any obvious lead point. CONCLUSION: There are few reports in the medical literature of acute colonic intussusception occurring in the absence of organic cause in adults.
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