Congenital Neutropenia

Comprehensive patient care through innovative hematology genetics testing.

Versiti Diagnostic Labs is proud to lead the way in performing advanced genetic testing for the diagnosis of congenital neutropenia. Targeted sequence testing is offered for the detection of mutations in the ELANE and HAX1 genes, which can help confirm a diagnosis of congenital or cyclic neutropenia. In addition, our Congenital Neutropenia Panel is available for a comprehensive genetic analysis.

Congenital Neutropenia is a condition that causes patients to be susceptible to recurrent infections, as a result of a deficiency of neutrophils, a type of white blood cell that plays a role in inflammation and fighting infection. This deficiency of neutrophils is apparent at birth or soon afterward, and leads to recurrent infections beginning in infancy. Patients can also develop fevers, and inflammation of the gums (gingivitis) and skin.

Innovative genetic testing—designed by experts.

Severe Congenital Neutropenia (SCN) is a disorder of neutrophil production that is characterized by recurrent fever, infections and inflammation of the mouth, skin and pharynx. Another hallmark of these disorders is a predisposition to myelodysplastic syndrome and AML. Diagnosis of these disorders is based on clinical findings and serial measurement of the absolute neutrophil count (ANC). Cyclic neutropenia is distinguished from congenital neutropenia by regular oscillations of the ANC and generally milder infectious complications.

Mutations in the ELANE gene have been reported in 90-100% of cyclic neutropenia patients and 38-80% of congenital neutropenia patients. ELANE-related neutropenia is inherited in an autosomal dominant manner. An autosomal recessive form of SCN (Kostmann Disease) is caused by mutations in the HAX1 gene. In one study, homozygous HAX1 mutations were found in approximately one third of SCN patients without ELANE mutations. In some cases, HAX1 mutations are associated with neurological symptoms. Identification of a mutation in the ELANE gene or homozygous mutations in the HAX1 gene confirms a diagnosis of SCN.

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Congenital Neutropenia Panel

This panel is designed for detection of germline variants in 24 genes known to cause severe congenital neutropenia (SCN), cyclic neutropenia, and syndromic neutropenia with non-hematological manifestations. It can be ordered as: Next Generation Sequencing (NGS) only; NGS with reflex to Array Comparative Genomic Hybridization (aCGH); NGS with concurrent aCGH (both testing methodologies performed simultaneously); aCGH only

 
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