Phrenitis
Ancient term for acute inflammation with fever and delirium.
Phrenitis was a term used by Hippocrates and other ancient Greek physicians to describe an acute inflammation affecting both the mind and body. It was a descriptive label rather than a theoretical one, and its exact location in the body was never clearly defined, either anatomically or conceptually. During the Middle Ages, the diagnosis continued to be used, referring to a state of mental confusion or continuous delirium accompanied by fever.
- field
- Medicine
- known_for
- Historical diagnosis of acute inflammation with fever and delirium
- related_modern_terms
- Meningitis, encephalitis, delirium
Lore & Background
The term phrenitis was employed in ancient Greece by Hippocrates and his followers. It referred to acute inflammation of mind and body, not in a theoretical but in a descriptive sense. Its presumed seat was never anatomically or conceptually well determined. The diagnosis was used during the Middle Ages: a mental confusion or continuous delirium with fever. Phrenitis meant an inflammation of the brain, or of the meninges of the brain, attended with acute fever and delirium. Symptoms varied widely in severity, from short-lived, relatively slight effects of headache, drowsiness, and fever to paralysis, coma, and death.
Reader's Guide
The ancient phrenitis concept was used until the 19th century, after which it was replaced by the word delirium. Detailed descriptions by Gerard van Swieten marked the end of an uncritical use of the term. The epoch-making work of Morgagni, based on clinical-anatomical observations, provided definitive insight into the location of the condition and many pathologic features. Pinel is the last author who mentioned phrenitis in a classification of diseases. Phrenitis is no longer in scientific use; nowadays meningitis or encephalitis are diagnosed. The term also relates to suffering from frenzy, being delirious, mad, frantic, or frenetic.
Did You Know?
- Phrenitis was used in ancient Greece by Hippocrates and his followers.
- The term was used until the 19th century before being replaced by delirium.
- Pinel is the last author who mentioned phrenitis in a classification of diseases.
- Phrenitis is no longer in scientific use; meningitis or encephalitis are diagnosed today.
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