Look at these differing opinions or descriptions of TOS on emedicine:

Thoracic Outlet Syndrome (Sports Medicine)
Thoracic outlet syndrome is not the name of a single entity, but rather a collective title for a variety of conditions attributed to compression of these ...

Thoracic Outlet Syndrome (Physical Medicine and Rehabilitation)
Thoracic outlet syndrome (TOS) is a controversial topic in the literature; many proponents support the existence of the condition, but some strongly vocal ...

Thoracic Outlet Syndrome (Neurology)
Thoracic outlet syndrome (TOS) is complex clinical entity characterized by various neurovascular signs and symptoms of the upper limb. It includes several ...

Thoracic Outlet Syndrome (Emergency Medicine)
Thoracic outlet syndrome (TOS) is a broad term that refers to compression of the neurovascular structures in the area just above the first rib and behind ...

Thoracic Outlet Syndrome (Radiology)
Thoracic outlet syndromes are caused by compression of the neurovascular structures passing through the thoracic outlet. These syndromes can be classified ...


I think it's ridiculous that emedicine does not apparently know that its own authors are writing different descriptions of TOS...