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Intussusception in colorectal cancer.
Manish Chand1, Luke Bradford, Guy F Nash
1Poole General Hospital, Dorset, United Kingdom. mans001@aol.com
Adult intussusception, often linked to tumors, presents diagnostic challenges, especially when intermittent. This study highlights how atypical abdominal pain can indicate occult colorectal cancer, even when CT scans are inconclusive.
Area of Science:
- Gastroenterology
- Surgical Oncology
- Diagnostic Imaging
Background:
- Adult intussusception is rare and typically associated with an underlying malignancy.
- Computed tomography (CT) can identify intussusception but struggles with intermittent presentations.
- Nonspecific abdominal symptoms in known bowel cancer patients can obscure intussusception diagnosis.
Observation:
- Two cases of retrograde intussusception caused by cecal tumors are presented.
- Preoperative CT scans failed to identify the intussusceptions in both cases.
- Patients experienced intermittent severe abdominal pain and weight loss, atypical for metastatic cecal cancer.
Findings:
- Intermittent adult intussusception poses significant diagnostic difficulties.
- Retrograde intussusception due to cecal tumors can be occult on preoperative CT.
- Atypical abdominal pain may be an early indicator of otherwise occult colorectal cancer.
Implications:
- Highlights the need for heightened clinical suspicion for intussusception in adults with unexplained abdominal symptoms.
- Suggests that intermittent intussusception may be an underdiagnosed presentation of colorectal cancer.
- Emphasizes the importance of considering intussusception in the differential diagnosis of unexplained abdominal pain and weight loss in adults.
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