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Severe congenital neutropenia

Severe congenital neutropenia is a condition that increases the risk of repeated infections in affected individuals. People with this condition have an abnormally low level (deficiency) of neutrophils, a type of white blood cell that plays a role in inflammation and in fighting infection. The shortage of neutrophils, called neutropenia, is apparent at birth or soon afterward. It leads to frequent infections beginning in infancy, including infections of the sinuses, lungs, and liver. Affected individuals can also develop fevers and inflammation of the gums (gingivitis) and skin. Approximately 40 percent of affected people have decreased bone density (osteopenia) and may develop osteoporosis, a condition that makes bones progressively more brittle and likely to fracture. In people with severe congenital neutropenia, bone disorders can begin at any time from infancy through adulthood.

Description

Severe congenital neutropenia is a condition that increases the risk of repeated infections in affected individuals. People with this condition have an abnormally low level (deficiency) of neutrophils, a type of white blood cell that plays a role in inflammation and in fighting infection. The shortage of neutrophils, called neutropenia, is apparent at birth or soon afterward. It leads to frequent infections beginning in infancy, including infections of the sinuses, lungs, and liver. Affected individuals can also develop fevers and inflammation of the gums (gingivitis) and skin. Approximately 40 percent of affected people have decreased bone density (osteopenia) and may develop osteoporosis, a condition that makes bones progressively more brittle and likely to fracture. In people with severe congenital neutropenia, bone disorders can begin at any time from infancy through adulthood.

Approximately 20 percent of people with severe congenital neutropenia develop certain cancerous conditions of the blood, particularly myelodysplastic syndrome or leukemia during adolescence.

Some people with severe congenital neutropenia have additional health problems such as seizures, developmental delay, or heart and genital abnormalities.

Inheritance patterns

The source lists the following possible inheritance patterns: Autosomal recessive; Autosomal dominant; X-linked recessive. More than one pattern can apply in different cases.

Other names

Congenital agranulocytosis

Congenital neutropenia

Infantile genetic agranulocytosis

Kostmann disease

Kostmann's agranulocytosis

Kostmann's syndrome

Severe infantile genetic neutropenia

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Lectures complémentaires et références

Historique de l'article

Les informations sur cette page sont rédigées et examinées par des cliniciens qualifiés.
  • 10 Nov 2023 | Dernière version
  • 1 Apr 2010 | Publié à l'origine

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