All the following are features of marasmus except
**Core Concept**
Marasmus is a severe form of malnutrition characterized by energy deficiency and muscle wasting, leading to a catabolic state. It is caused by a lack of adequate protein and calorie intake, resulting in the breakdown of muscle tissue and a decrease in body weight.
**Why the Correct Answer is Right**
The correct answer is related to the pathophysiology of marasmus. Marasmus is characterized by a decrease in body fat and muscle mass, leading to severe weight loss and weakness. This is due to the body's inability to utilize proteins and fats for energy production, resulting in the breakdown of muscle tissue. The liver and kidneys are also affected, leading to a decrease in their function.
**Why Each Wrong Option is Incorrect**
**Option A:** Edema is actually a feature of kwashiorkor, another form of malnutrition, not marasmus. In kwashiorkor, edema occurs due to the lack of albumin production in the liver.
**Option B:** Muscle wasting is a key feature of marasmus, making this option incorrect.
**Option C:** Severe weight loss is a hallmark of marasmus, making this option incorrect.
**Clinical Pearl / High-Yield Fact**
Marasmus is often associated with a "skinny-fat" appearance, where the individual has a normal body mass index (BMI) but has lost muscle mass and body fat.
**Correct Answer:** A.