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Pseudomembranous colitis. A clinicopathological review of 7 cases
1Department of Anatomical Pathology, University of Natal, Durban.
Abstract:
The clinical and pathological features of 7 cases of pseudomembranous colitis in which a pathological diagnosis was made on either postmortem or surgical biopsy material are described. All 7 patients had a history of exposure to antibiotics before the onset of the disease, including commonly used antibiotics such as ampicillin. Previous surgery was an additional predisposing factor in 2 patients. All patients presented with diarrhoea. On histological examination the typical 'glandular' lesion showing the surface pseudo-membrane was seen in all cases. In addition, 2 cases showed the typical 'summit' lesions of pseudomembranous colitis.
Insights
Antibiotic exposure, particularly ampicillin, is linked to pseudomembranous colitis. This study details the clinical and pathological findings in seven patients diagnosed with this condition.
Area of Science:
- Gastroenterology
- Pathology
- Infectious Diseases
Background:
- Pseudomembranous colitis is a severe intestinal inflammation.
- Antibiotic use is a known risk factor for this condition.
- Understanding its clinical and pathological features is crucial for diagnosis and management.
Purpose of the Study:
- To describe the clinical and pathological characteristics of pseudomembranous colitis.
- To identify predisposing factors associated with the disease.
- To correlate histological findings with the clinical presentation.
Main Methods:
- Retrospective analysis of 7 patient cases.
- Review of clinical histories, including antibiotic exposure and previous surgeries.
- Examination of postmortem or surgical biopsy materials for pathological diagnosis.
- Histological evaluation for characteristic pseudomembranous colitis lesions.
Main Results:
- All 7 patients had a history of antibiotic exposure prior to disease onset.
- Ampicillin was among the commonly used antibiotics implicated.
- Two patients had a history of previous surgery as an additional risk factor.
- Diarrhea was the presenting symptom in all patients.
- Histological examination revealed the characteristic 'glandular' lesion with pseudomembranes in all cases.
- Two cases also exhibited the 'summit' lesions.
Conclusions:
- Antibiotic-associated pseudomembranous colitis is characterized by specific clinical and pathological findings.
- History of antibiotic exposure is a key predisposing factor.
- Histological confirmation of pseudomembranes is essential for diagnosis.