A patient with abdominal pain diarrhea and weight loss. He gives a history of taking treatment for pulmonary TB. What does the barium film of the patient show?
**Core Concept**
The patient's symptoms of abdominal pain, diarrhea, and weight loss, coupled with a history of pulmonary tuberculosis (TB) treatment, suggest intestinal tuberculosis (TB). Intestinal TB is a form of extrapulmonary TB that affects the gastrointestinal tract, often presenting with non-specific symptoms. The barium film examination is a diagnostic tool used to visualize the intestinal tract and identify any abnormalities, such as strictures, ulcers, or fistulas.
**Why the Correct Answer is Right**
The barium film of a patient with intestinal TB typically shows **strictures**, **ulcers**, or **fistulas** in the small intestine, particularly in the ileum. These lesions are caused by the tubercle bacilli (Mycobacterium tuberculosis) that invade the intestinal wall, leading to inflammation, scarring, and narrowing of the intestinal lumen. The strictures can cause bowel obstruction, while the ulcers can lead to chronic blood loss and malabsorption.
**Why Each Wrong Option is Incorrect**
**Option A:** A barium film of a patient with Crohn's disease may show strictures, ulcers, or fistulas, but the clinical context (history of pulmonary TB treatment) points towards intestinal TB. Crohn's disease is a type of inflammatory bowel disease that can present with similar symptoms, but it is not directly associated with TB treatment.
**Option B:** A normal barium film would not be expected in a patient with intestinal TB, as the disease typically causes visible lesions in the intestinal tract.
**Option C:** A barium film of a patient with celiac disease may show mucosal irregularities or narrowing of the intestinal lumen, but the clinical context (history of pulmonary TB treatment) is not typical for celiac disease.
**Clinical Pearl / High-Yield Fact**
Intestinal TB can mimic other conditions, such as Crohn's disease or celiac disease, making it essential to consider the patient's medical history and treatment history when interpreting diagnostic findings.
**Correct Answer:** C. Strictures, ulcers, or fistulas in the small intestine.