Congenital athymia

Congenital athymia is an ultra-rare, life-threatening primary immunodeficiency disorder characterized by the complete absence of a functional thymus at birth Primarily affecting pediatric patients, the condition frequently occurs as part of complex genetic syndromes, such as complete DiGeorge syndrome, 22q11.2 deletion syndrome, CHARGE syndrome, or isolated mutations in genes essential for thymic organogenesis, such as FOXN1 or PAX1 Pathophysiologically, the lack of thymic tissue prevents the ma...

Congenital athymia is an ultra-rare, life-threatening primary immunodeficiency disorder characterized by the complete absence of a functional thymus at birth Pathophysiologically, the lack of thymic tissue prevents the maturation and selection of T lymphocytes, resulting in profound T-cell lymphopenia

Primarily affecting pediatric patients, the condition frequently occurs as part of complex genetic syndromes, such as complete DiGeorge syndrome, 22q11.2 deletion syndrome, CHARGE syndrome, or isolated mutations in genes essential for thymic organogenesis, such as FOXN1 or PAX1 Consequently, affected infants present with extreme susceptibility to severe, recurrent infections, failure to thrive, and life-threatening immune dysregulation, including autologous graft-versus-host-like disease