The plural of chemopallidectomy; multiple surgical procedures that chemically destroy parts of the brain's globus pallidus to treat movement disorders.
From 'chemo-' (chemical) + 'pallidectomy' (surgical removal of the pallidus). Plural form using '-ies' of a medical procedure combining chemical and surgical methods.
Chemopallidectomies were desperate treatments from the mid-20th century before modern medicines—surgeons would chemically burn brain tissue to stop Parkinson's tremors, showing how far doctors would go before understanding the underlying disease.
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