exostosis

Thân thiện

A doctor points to an exostosis on an X-ray film.

Definition

Noun: A benign, bony growth that projects outward from the surface of a bone. It is typically capped with cartilage.

Usage

The term is used in medical contexts to describe a specific type of non-cancerous bone tumor or overgrowth. It often refers to a condition rather than a single event. * The X-ray revealed a small exostosis on the femur. * Hereditary multiple exostoses is a genetic disorder characterized by multiple bony growths.

Examples

• The surgeon removed the painful exostosis from the patient's heel bone.
• An exostosis in the ear canal, known as surfer's ear, can be caused by repeated exposure to cold water and wind.

Advanced Usage

• Hereditary Multiple Exostoses (HME): A specific medical condition where multiple exostoses form on bones throughout the body.
• Subungual Exostosis: A bony outgrowth that occurs under the toenail or fingernail.

Variants and Related Words

• Exostoses (plural): The plural form of exostosis.
• Osteochondroma: A specific, common type of exostosis where the bony growth is capped with cartilage. The terms are often used interchangeably in medicine.

Synonyms

• Bone spur (though a "spur" is often a different, smaller type of bony projection)
• Osteoma (a benign bone tumor, but not necessarily cartilage-capped)
• Bony outgrowth
• Bony protuberance

Antonyms

• Bone resorption
• Osteolysis (the breakdown or dissolution of bone tissue)

Học thuật

Noun

1. a benign outgrowth from a bone (usually covered with cartilage)