**Question:** A child is spun around by holding his hand by the father. While doing this, the child staed crying and does not allow his father to touch his elbow. The diagnosis is

A. Epicondylitis (tennis elbow)
B. Epitrochlearis neuralgia
C. Epicondylitis (golf elbow)
D. Epitrochlearis neuralgia

**Correct Answer:** D. Epitrochlearis neuralgia

**Core Concept:** Epitrochlearis neuralgia is a condition characterized by pain and tenderness along the course of the median nerve as it passes through the cubital tunnel in the elbow. The cubital tunnel is a bony tunnel in the elbow formed by the medial epicondyle of the humerus and the coronoid process of ulna. The median nerve, ulnar nerve, and some flexor muscles of the forearm pass through this tunnel.

**Why the Correct Answer is Right:** In this case, the child is crying and not allowing the father to touch his elbow, indicating pain and discomfort. Epitrochlearis neuralgia is the correct answer because it involves pain in the elbow region, specifically along the course of the median nerve. The pain occurs due to compression or irritation of the median nerve as it passes through the cubital tunnel in the elbow. This condition is usually caused by an anatomical variation in the tunnel, leading to compression or irritation of the median nerve and subsequent pain.

**Why Each Wrong Option is Incorrect:**

A. Epicondylitis (tennis elbow) is a condition involving pain on the lateral aspect of the elbow due to overuse or trauma, not related to the median nerve or cubital tunnel.

B. Epitrochlearis neuralgia is a rare condition, but rather than the cubital tunnel, it occurs due to compression or irritation of the lateral antebrachial cutaneous nerve (LACN) near the medial elbow, not the cubital tunnel in the elbow.

C. Epicondylitis (golf elbow) is a condition involving pain on the medial aspect of the elbow due to overuse or trauma, not related to the cubital tunnel or median nerve.

D. Epitrochlearis neuralgia is the correct answer, as discussed above. The median nerve is compressed or irritated in the cubital tunnel, causing pain in the elbow region. However, this option is often misdiagnosed as epicondylitis or epicondylitis, which are conditions affecting the lateral or medial elbow, respectively. The cubital tunnel is a crucial element in the correct diagnosis of this condition.

**Clinical Pearl:**

Epitrochlearis neuralgia can be easily misdiagnosed as epicondylitis or epicondylitis due to the similarity in symptoms. However, understanding the location of the cubital tunnel and the path of the median nerve will help differentiate these conditions and arrive at the correct diagnosis.

**Why Each Wrong Option is Incorrect:**

A. Epicondylitis is a condition affecting the lateral elbow, not the cubital tunnel or the median nerve.