True about thoracic outlet syndrome are the below EXCEPT
**Core Concept**
Thoracic outlet syndrome (TOS) refers to the compression or injury of the nerves and/or blood vessels that pass through the thoracic outlet, a small space between the neck and shoulder. This condition can lead to symptoms such as pain, numbness, and tingling in the arm and hand.
**Why the Correct Answer is Right**
The symptoms of TOS are due to compression of the brachial plexus, a network of nerves that originates in the spinal cord and travels through the thoracic outlet. The compression can be caused by various factors, including a cervical rib, a thoracic outlet anomaly, or repetitive motion. The compression of the brachial plexus leads to damage to the nerves, which can cause pain, numbness, and tingling in the arm and hand.
**Why Each Wrong Option is Incorrect**
* **Option A:** Not available for review.
* **Option B:** Not available for review.
* **Option C:** Not available for review.
* **Option D:** Not available for review.
**Clinical Pearl / High-Yield Fact**
A classic clinical pearl to remember is that thoracic outlet syndrome is often associated with activities that involve repetitive motion, such as rowing or throwing. This is because these activities can lead to compression of the brachial plexus and subsequent symptoms.
**Correct Answer:** D.