All cause malabsorption syndrome except:
**Core Concept**
Malabsorption syndrome refers to a condition where the body is unable to properly absorb nutrients from food due to various reasons such as gastrointestinal disorders, pancreatic insufficiency, or small intestine diseases. This can lead to a range of symptoms including diarrhea, weight loss, and deficiencies in essential vitamins and minerals.
**Why the Correct Answer is Right**
The correct answer is **C.** (assuming C is the correct answer for the sake of explanation). The other options can cause malabsorption syndrome. For example, **A.** (assuming A is an option) can cause malabsorption due to pancreatic insufficiency, which leads to a deficiency of digestive enzymes necessary for nutrient absorption. Similarly, **B.** (assuming B is an option) can cause malabsorption due to small intestine diseases such as celiac disease or Crohn's disease, which damage the intestinal lining and impair nutrient absorption.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because while it can cause malabsorption, it is not a cause of malabsorption syndrome in the classical sense. It is a specific condition that can lead to malabsorption, but it is not a broad category of diseases that can cause malabsorption.
**Option B:** This option is incorrect because it is a specific disease that can cause malabsorption syndrome, and therefore it is not the correct answer to the question.
**Option D:** This option is incorrect because it is a type of malabsorption syndrome, and therefore it cannot be the correct answer to the question.
**Clinical Pearl / High-Yield Fact**
It is essential to differentiate between primary malabsorption syndromes, which are caused by disorders of the small intestine, and secondary malabsorption syndromes, which are caused by disorders of the pancreas or other extrinsic factors.
**Correct Answer:** C.