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Condition

Hereditary multiple exostoses

Congenital Malformations and Chromosomal Abnormalities

Hereditary multiple exostoses, also called hereditary multiple osteochondromas, is a disorder marked by many benign masses of bone and cartilage, called exostoses or osteochondromas, near the ends of long bones. They typically arise in the femurs, tibias, humeri and forearm bones, and sometimes in flat bones such as the pelvis and scapula. Their number and distribution vary widely between people. They usually appear in childhood and almost everyone affected is clinically evident by adolescence. The incidence is around 1 in 50,000. A small share of patients develop sarcomas through malignant change, with a lifetime risk given as 1 in 20 to 1 in 200. The World Health Organization prefers the term osteochondromas.

Facts
Classification
Body System
Skeletal System 1
ICD-10 Chapter
XVII: Congenital Malformations, Deformations and Chromosomal Abnormalities 2
Communicable or Non-communicable
Non-Communicable 1
Transmission Route
Non-Transmissible 1
Causative Agent
Causative Agent (category)
Genetic / Hereditary 1
Sources
1. Hereditary multiple exostoses (Wikipedia)
  • Lead
    multiple benign osteocartilaginous masses (exostoses) in relation to the ends of long bones
  • Article text
    HME is an autosomal dominant hereditary disorder.
  • Lead - communicable-or-non-communicable
    Hereditary multiple osteochondromas (HMO), also known as hereditary multiple exostoses, is a disorder characterized by the development of multiple benign osteocartilaginous masses (exostoses) in relation to the ends of long bones of the lower limbs such as the femurs and tibias and of the upper limbs such as the humeri and forearm bones.
  • Lead - transmission-route
    Hereditary multiple osteochondromas (HMO), also known as hereditary multiple exostoses, is a disorder characterized by the development of multiple benign osteocartilaginous masses (exostoses) in relation to the ends of long bones of the lower limbs such as the femurs and tibias and of the upper limbs such as the humeri and forearm bones.
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2. World Health Organization: ICD-10 Version:2019 - Q78.6
World Health OrganizationICD-10 2019 category Q78.6, Chapter XVII
Quote, ICD-10 2019 category Q78.6, Chapter XVII
Q78.6 Multiple congenital exostoses
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