Conditions / Genetic

immunodeficiency 14

info ยท Genetic

A combined T cell and B cell immunodeficiency characterized by B- and T-cell abnormalities and onset of recurrent sinopulmonary and other infections in early childhood that has_material_basis_in heterozygous activating mutation in the PIK3CD gene on chromosome

A combined T cell and B cell immunodeficiency characterized by B- and T-cell abnormalities and onset of recurrent sinopulmonary and other infections in early childhood that has_material_basis_in heterozygous activating mutation in the PIK3CD gene on chromosome 1p36.22.

Signs and symptoms

  • Decreased circulating specific pneumococcal antibody concentration
  • Recurrent respiratory infections
  • Recurrent ear infections
  • Decreased circulating IgG2 concentration
  • Increased transitional B cell proportion
  • Increased circulating IgM concentration
  • Bronchiectasis
  • Lymphadenopathy
  • Decreased total T cell count
  • Splenomegaly

Also known as: APDS; IMD14; PASLI disease; activated PI3K-delta syndrome; senescent T-cells-lymphadenopathy-immunodeficiency syndrome due to p110delta-activating mutation