- immunodeficiency 49 [DOID:0111979]
A T cell deficiency characterized by T cell lymphopenia, low T-cell receptor excision circles, impaired T-cell proliferative responses, dysmorphic facial features, hypotonia and severe global developmental delay that has_material_basis_in heterozygous mutation in the BCL11B gene on chromosome 14q32.2.
- immunodeficiency 48 [DOID:0111943]
A T cell deficiency characterized by a selective T cell defect where circulating T cells exclusively express CD4, CD3, and T-cell receptor-alpha/beta and not CD8 on their surfaces that has_material_basis_in homozygous or compound heterozygous mutation in the ZAP70 gene on chromosome 2q11.2.
- immunodeficiency 13 [DOID:0111987]
A T cell deficiency characterized by decreased CD4 T-lymphocyte counts that has_material_basis_in heterozygous mutation in the UNC119 gene on chromosome 17q11.2.
- hepatosplenic T-cell lymphoma [DOID:0081049]
A mature T-cell and NK-cell lymphoma that is characterized by the presence of medium-size neoplastic lymphocytes infiltrating the hepatic sinusoids and that originates from cytotoxic T-cells, usually of gamma/delta T-cell type.
- immunodeficiency 23 [DOID:0111953]
A combined T cell and B cells immunodeficiency characterized by marked atopy and autoimmunity caused by increased T(H)2 and T(H)17 cytokine production by CD4(+) T cells, T-cell lymphopenia, reduced memory B-cell numbers, recurrent respiratory and skin infections beginning in early childhood, increased serum IgE, and variable developmental delay or intellectual impairment that has_material_basis_in homozygous or compound heterozygous mutation in the PGM3 gene on chromosome 6q14.1.