Capitalizing eponyms
Eponyms are common in medical records. There are many diseases, signs, syndromes, tests, procedures, instruments, devices and tools that are named after the person or group that invented or discovered them. Many are named after a patient.
Because an eponym is named for a person, it is a proper noun and is capitalized.
Homans sign
Lou Gehrig disease
Homans sign
Do not capitalize the adjectival or verbal forms derived from eponyms.
His parkinsonian signs were obvious.
The patient's appearance was cushingoid.
The vessel was bovied.
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