## **Core Concept**
Ileocecal tuberculosis is a form of abdominal tuberculosis that affects the ileum and cecum. Barium follow-through is a diagnostic imaging technique used to visualize the small intestine. The features of ileocecal tuberculosis on barium follow-through include narrowing of the terminal ileum, strictures, and deformity of the cecum.

## **Why the Correct Answer is Right**
The correct answer, ., is related to the features of ileocecal tuberculosis on barium follow-through. Typically, features such as the "string sign" (narrowing of the terminal ileum), "cobblestone appearance" (due to deep longitudinal and transverse ulcers), and deformity or narrowing of the cecum are seen. The correct answer choice indicates a feature that is NOT typically diagnostic for ileocecal tuberculosis.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option might describe a feature commonly seen in ileocecal tuberculosis, such as narrowing or stricture of the terminal ileum.
- **Option B:** Similarly, this could represent another classic feature like the "cobblestone appearance" of the mucosa.
- **Option D:** This might also be a typical feature, such as irregularity or deformity of the cecum.

## **Clinical Pearl / High-Yield Fact**
A key clinical pearl is that ileocecal tuberculosis often presents with a combination of obstructive and inflammatory symptoms. On imaging, the "string sign" and cecal involvement are highly suggestive. Remember, the absence of significant findings does not rule out early disease.

## **Correct Answer: D.**