Sympathetic Schwannoma

A benign or malignant paraganglioma arising from the chromaffin cells of the paraganglia that are located along the sympathetic nerves. It…

The part of the nervous system that increases heart rate, blood pressure, breathing rate, and pupil size. It also causes blood vessels…

Ganglia of the sympathetic nervous system including the paravertebral and the prevertebral ganglia. Among these are the sympathetic chain ganglia, the superior,…

Neural blockade of the sympathetic nerve roots.

A binary relation such that if a is related to b then b is related to a.

An arbitrary sign (written or printed) that has acquired a conventional significance.