## **Core Concept**
Intestinal angina, also known as abdominal angina, refers to a condition characterized by recurring abdominal pain, typically occurring after eating, due to insufficient blood flow to the intestines. This condition often results from severe atherosclerotic narrowing or occlusion of the major arteries supplying the gastrointestinal tract, such as the celiac trunk, superior mesenteric artery (SMA), and inferior mesenteric artery.

## **Why the Correct Answer is Right**
The correct answer, **C. Chronic mesenteric ischemia**, is right because intestinal angina is a classic symptom complex of this condition. Chronic mesenteric ischemia occurs when there is a significant reduction in blood flow to the intestines, usually due to atherosclerotic disease affecting the SMA and/or celiac artery. This reduction in blood flow leads to postprandial pain (pain after eating), weight loss, and sometimes nausea and vomiting. The pain is often described as a crampy, mid-abdominal pain that occurs 15-90 minutes after eating.

## **Why Each Wrong Option is Incorrect**
- **Option A: Acute mesenteric ischemia** is incorrect because, although it also involves a sudden reduction in blood flow to the intestines, its presentation is typically more acute, often with severe abdominal pain out of proportion to physical examination findings, and can rapidly progress to bowel infarction.
- **Option B: Celiac artery compression syndrome** is incorrect because, while it can cause abdominal pain and is related to the vasculature of the intestines, it specifically involves compression of the celiac artery, usually by the median arcuate ligament, and typically presents with postprandial pain and weight loss, but is less commonly associated with the term "intestinal angina."
- **Option D: Non-rotation of the gut** is incorrect because it refers to a congenital anomaly of intestinal rotation and fixation, which can lead to midgut volvulus and acute intestinal obstruction but is not directly associated with the symptom complex of intestinal angina.

## **Clinical Pearl / High-Yield Fact**
A key clinical pearl is that intestinal angina, or chronic mesenteric ischemia, is often referred to as "the 5 Fs": **Food, Fainting, Feces, Flatulence, and Fatality** (if untreated). However, the classic triad includes postprandial pain, weight loss, and abdominal bruit. Early recognition and intervention can prevent complications such as bowel infarction.

## **Correct Answer: C. Chronic mesenteric ischemia**