Misnomers have dogged medical practice seemingly since its inception. They may arise out of initial misunderstanding of the underlying disease process, a fanciful personification of the disease itself, or simple confusion encountered early in the disease’s discovery. Misnomers are not harmless. By increasing unneeded complexity, they add to challenges in medical education without increasing understanding. Practicing clinicians may experience difficulties in communicating with patients. For example, a diagnosis of “ringworm” may be made but the patient may not understand why an antiparasitic is not being prescribed, requiring an explanation that it is a dermatophytic condition and not a parasitic one. While no randomized controlled trial can be conducted, misnomers can arguably create unconscious bias in clinician minds about the underlying pathophysiology of different conditions. We aim to end the cycle of misinformation by pointing out some common misnomers and encouraging alternate names that are more accurate, either novel or already in use. We invite the reader to send us more examples from their field.
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