Definition

Noun: 1. A severe, recurring headache affecting one side of the head: Hemicrania is a specific type of intense, often debilitating headache characterized by pain localized to one hemisphere (side) of the head. It is classified as a vascular headache, meaning it involves the dilation or constriction of blood vessels in the brain.

Usage and Examples

• As a subject: "Hemicrania can be extremely disabling for those who suffer from it."
• As an object: "The patient was diagnosed with chronic hemicrania."
• With modifiers: "She experiences episodic hemicrania, with attacks occurring several times a month."

Advanced Usage and Notes

• Medical Context: In clinical terminology, "hemicrania" is often used interchangeably with "migraine," though "migraine" is the more common general term. The word "hemicrania" itself precisely describes the unilateral (one-sided) pain characteristic of many migraines.
• Chronic vs. Episodic: The condition can be described as (occurring on 15 or more days per month) or (occurring on fewer than 15 days per month).

Variants and Related Words

• Hemicrania Continua (Noun): A rare, specific headache disorder characterized by a continuous, unilateral headache of moderate intensity with periods of more severe pain.
  • Example: "The unremitting pain led to a diagnosis of hemicrania continua."
• Paroxysmal Hemicrania (Noun): Another distinct headache disorder involving severe, short-lasting, unilateral attacks that occur multiple times a day.
  • Example: "Paroxysmal hemicrania typically responds well to treatment with indomethacin."

Synonyms

• Migraine (Noun): The most common synonym, referring to a severe headache often accompanied by nausea, sensitivity to light/sound, and sometimes visual disturbances (aura).
• Sick Headache (Noun, informal): An informal term emphasizing the nausea often associated with this condition.
• Megrim (Noun, archaic): An older, now less common term for migraine.

Related Terms and Concepts

• Cephalalgia (Noun): The general medical term for any type of headache.
• Unilateral (Adjective): Located on or affecting only one side, which is the defining feature of hemicrania.
• Vascular Headache (Noun): The broader category of headaches, including migraines and cluster headaches, believed to involve blood vessel changes.

Noun

1. a severe recurring vascular headache; occurs more frequently in women than men