Medical inflammation of one or more ganglia or nerve clusters.
From Greek 'ganglion' plus '-itis' (inflammation). This follows the standard medical terminology pattern for describing inflammatory conditions affecting specific body structures.
Whenever you see '-itis' in a medical term—appendicitis, arthritis, gangliitis—it's a red flag that something is inflamed, swollen, and probably causing pain, which is why doctors use the pattern to diagnose conditions.
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