Acute Abdomen and Intestinal Disease: Obstruction, Ischemia, Appendicitis and Intestinal Tuberculosis
4th Year MBBS • GIT Module
Connect the major mechanisms, clinical clues, investigations and management principles for rapid revision.
1. THE TOPIC IN ONE CONNECTED FLOW
These conditions differ in cause, but they connect through a common clinical theme: intestinal structure or blood flow becomes disturbed, producing pain, altered bowel function and potentially serious complications. The key is to recognize how the initiating process leads to tissue injury, clinical findings, diagnostic clues and the need for medical or surgical intervention.
2. KEY CLINICAL CONNECTIONS
Mechanical blockage → proximal fluid and gas accumulation → colicky pain, vomiting and distension → imaging identifies dilated bowel and the level of obstruction.
Rising pressure → vascular compromise → continuous pain or peritoneal signs → urgent surgical assessment.
Reduced perfusion → mucosal hypoxia → epithelial sloughing and hemorrhage → deeper injury if ischemia persists.
Progressive necrosis → transmural infarction → loss of bowel integrity → perforation, peritonitis and sepsis.
Appendiceal obstruction → distension and inflammation → localized right lower-quadrant findings → appendectomy in most confirmed cases.
Tuberculous granulomatous inflammation → ulceration and healing → fibrosis and stricture → chronic obstruction treated primarily with antituberculous therapy.