. Most common indication for laparotomy in intestine T.B is –
**Core Concept**
Intestinal tuberculosis (TB) is a form of extrapulmonary TB that affects the gastrointestinal tract, often presenting with abdominal symptoms. Laparotomy, an open surgical procedure, is considered in cases where medical management fails or complications arise.
**Why the Correct Answer is Right**
The most common indication for laparotomy in intestinal TB is **intestinal obstruction**. This occurs when the growth of TB lesions in the intestine leads to narrowing or complete blockage of the intestinal lumen. The resulting bowel obstruction can cause severe abdominal pain, vomiting, and constipation. Laparotomy is often necessary to relieve the obstruction, either by resecting the affected segment or by performing a bypass procedure. The mechanism involves the formation of fibrotic adhesions and granulomas in the intestinal wall, leading to luminal narrowing and eventually, obstruction.
**Why Each Wrong Option is Incorrect**
**Option A:** Intestinal perforation is a complication of intestinal TB, but it is not the most common indication for laparotomy. Perforation occurs when the TB lesions erode through the intestinal wall, leading to peritonitis and sepsis.
**Option B:** Malabsorption is a common symptom of intestinal TB, but it is not an indication for laparotomy. Malabsorption occurs due to the damage to the intestinal mucosa and villi, leading to impaired nutrient absorption.
**Option C:** Weight loss is a nonspecific symptom of intestinal TB and is not a direct indication for laparotomy. Weight loss occurs due to malabsorption and chronic inflammation.
**Clinical Pearl / High-Yield Fact**
In cases of intestinal TB, a high index of suspicion is necessary to diagnose and manage complications early. Laparotomy should be considered in patients with worsening abdominal symptoms, such as increasing abdominal pain or vomiting, or in those with signs of bowel obstruction.
**Correct Answer: C. Intestinal obstruction. Intestinal obstruction**