Explore the signs and symptoms, genetic cause, and inheritance pattern of various health conditions.

• T cell-negative, B cell-positive, NK cell-negative SCID, see JAK3-deficient severe combined immunodeficiency
• T-B+ severe combined immunodeficiency due to JAK3 deficiency, see JAK3-deficient severe combined immunodeficiency
• T-cell immunodeficiency, congenital alopecia, and nail dystrophy
• T1D, see Type 1 diabetes
• T2 deficiency, see Beta-ketothiolase deficiency
• T2D, see Type 2 diabetes
• TAA, see Familial thoracic aortic aneurysm and dissection
• TAAD, see Familial thoracic aortic aneurysm and dissection
• TACH, see Pol III-related leukodystrophy
• TAM, see Tubular aggregate myopathy
• Tangier disease
• Tangier disease neuropathy, see Tangier disease
• Tangier hereditary neuropathy, see Tangier disease
• Tapetoretinal degeneration, see Cone-rod dystrophy
• Tapetoretinal degeneration, see Retinitis pigmentosa
• TAR syndrome, see Thrombocytopenia-absent radius syndrome
• Tardive tibial muscular dystrophy, see Tibial muscular dystrophy
• Tarsal-carpal coalition syndrome
• Tarui disease, see Glycogen storage disease type VII
• Task-specific dystonia, see Task-specific focal dystonia
• Task-specific focal dystonia
• Tatton-Brown-Rahman syndrome, see DNMT3A overgrowth syndrome
• Tay-Sachs disease
• Tay-Sachs disease, AB variant, see GM2 activator deficiency
• Taybi syndrome, see Otopalatodigital syndrome type 1
• Taybi syndrome, see Otopalatodigital syndrome type 2
• TBG deficiency, see Inherited thyroxine-binding globulin deficiency
• TBRS, see DNMT3A overgrowth syndrome
• TC deficiency, see Transcobalamin deficiency
• TC II deficiency, see Transcobalamin deficiency
• TCC, see Tarsal-carpal coalition syndrome
• TCD, see Choroideremia
• TCN2 deficiency, see Transcobalamin deficiency
• TD, see Tourette syndrome
• Telangiectasia, cerebello-oculocutaneous, see Ataxia-telangiectasia
• Telomeric deletion 10, see 10q26 deletion syndrome
• Telomeric deletion 17p, see Miller-Dieker syndrome
• Terminal chromosome 10q26 deletion syndrome, see 10q26 deletion syndrome
• Terminal osseous dysplasia
• Terminal osseous dysplasia and pigmentary defect syndrome, see Terminal osseous dysplasia
• Terminal osseous dysplasia and pigmentary defects, see Terminal osseous dysplasia
• Terminal osseous dysplasia with pigmentary defects , see Terminal osseous dysplasia
• Terminal osseous dysplasia-pigmentary defects syndrome, see Terminal osseous dysplasia
• Teschler-Nicola/Killian syndrome, see Pallister-Killian mosaic syndrome
• Testosterone 17-beta-dehydrogenase deficiency, see 17-beta hydroxysteroid dehydrogenase 3 deficiency
• Testotoxicosis, see Familial male-limited precocious puberty
• TETAMS, see Tetra-amelia syndrome
• Tetra-amelia, see Tetra-amelia syndrome
• Tetra-amelia syndrome
• Tetra-amelia, autosomal recessive, see Tetra-amelia syndrome
• Tetrahydrobiopterin deficiency
• Tetraphocomelia-cleft palate syndrome, see Roberts syndrome
• Tetrasomy 12p, mosaic, see Pallister-Killian mosaic syndrome
• Tetrasomy 18p
• TFP deficiency, see Mitochondrial trifunctional protein deficiency
• TH deficiency, see Tyrosine hydroxylase deficiency
• TH-deficient DRD, see Tyrosine hydroxylase deficiency
• Thalassemia, beta type, see Beta thalassemia
• Thanatophoric dwarfism, see Thanatophoric dysplasia
• Thanatophoric dysplasia
• Thanatophoric short stature, see Thanatophoric dysplasia
• THAP1 dystonia, see Dystonia 6
• THE syndrome, see Trichohepatoenteric syndrome
• THES, see Trichohepatoenteric syndrome
• Thiamine metabolism dysfunction syndrome 2, see Biotin-thiamine-responsive basal ganglia disease
• Thiamine transporter-2 deficiency, see Biotin-thiamine-responsive basal ganglia disease
• Thiamine-responsive encephalopathy, see Biotin-thiamine-responsive basal ganglia disease
• Thiamine-responsive megaloblastic anemia syndrome
• Thiamine-responsive myelodysplasia, see Thiamine-responsive megaloblastic anemia syndrome
• Thiopurine methyltransferase deficiency, see Thiopurine S-methyltransferase deficiency
• Thiopurine S-methyltransferase deficiency
• THMD2, see Biotin-thiamine-responsive basal ganglia disease
• Thoracic aortic aneurysm, see Familial thoracic aortic aneurysm and dissection
• Thoracic asphyxiant dystrophy, see Asphyxiating thoracic dystrophy
• Thoracic-pelvic-phalangeal dystrophy, see Asphyxiating thoracic dystrophy
• Three M syndrome, see 3-M syndrome
• Three-M slender-boned nanism, see 3-M syndrome
• Thrombocytopathy, asplenia, and miosis, see Stormorken syndrome
• Thrombocytopenia 1, see X-linked thrombocytopenia
• Thrombocytopenia absent radii, see Thrombocytopenia-absent radius syndrome
• Thrombocytopenia-absent radius syndrome
• Thrombophilia due to protein S deficiency, autosomal dominant, see Protein S deficiency
• Thrombophilia due to protein S deficiency, autosomal recessive, see Protein S deficiency
• Thrombotic thrombocytopenic purpura
• Thymidine phosphorylase deficiency, see Mitochondrial neurogastrointestinal encephalopathy disease
• Tibial muscular dystrophy
• Tietz albinism-deafness syndrome, see Tietz syndrome
• Tietz syndrome
• Tietz's syndrome, see Tietz syndrome
• Timothy syndrome
• Titinopathy & early-onset myopathy with fatal cardiomyopathy, see Early-onset myopathy with fatal cardiomyopathy
• TK2-related mitochondrial DNA depletion myopathy, see TK2-related mitochondrial DNA depletion syndrome, myopathic form
• TK2-related mitochondrial DNA depletion syndrome, myopathic form
• TMAU, see Trimethylaminuria
• TMAuria, see Trimethylaminuria
• TMCO1 defect syndrome, see Cerebro-facio-thoracic dysplasia
• TMD, see Tibial muscular dystrophy
• TNDM type 1, see 6q24-related transient neonatal diabetes mellitus
• TNF receptor-associated periodic fever syndrome, see Tumor necrosis factor receptor-associated periodic syndrome
• TODPD, see Terminal osseous dysplasia
• Tomaculous neuropathy, see Hereditary neuropathy with liability to pressure palsies
• Torg syndrome, see Multicentric osteolysis, nodulosis, and arthropathy
• Torg-Winchester syndrome, see Multicentric osteolysis, nodulosis, and arthropathy
• Torsion dystonia 6, see Dystonia 6
• Torsion dystonia-parkinsonism, Filipino type, see X-linked dystonia-parkinsonism
• Total color blindness, see Achromatopsia
• Total hexosaminidase deficiency, see Sandhoff disease
• Total HPRT deficiency, see Lesch-Nyhan syndrome
• Total hypotrichosis, Mari type, see Autosomal recessive hypotrichosis
• Total hypoxanthine-guanine phosphoribosyl transferase deficiency, see Lesch-Nyhan syndrome
• Total lipodystrophy, see Congenital generalized lipodystrophy
• Tourette disorder, see Tourette syndrome
• Tourette syndrome
• Tourette's disease, see Tourette syndrome
• Townes syndrome, see Townes-Brocks Syndrome
• Townes-Brocks Syndrome
• Toxemia of pregnancy, see Preeclampsia
• Toxic diffuse goiter, see Graves' disease
• Toxic epidermal necrolysis, see Stevens-Johnson syndrome/toxic epidermal necrolysis
• TPA deficiency, see Mitochondrial trifunctional protein deficiency
• TPI deficiency, see Triosephosphate isomerase deficiency
• TPID, see Triosephosphate isomerase deficiency
• TPMT deficiency, see Thiopurine S-methyltransferase deficiency
• Transcobalamin deficiency
• Transcobalamin II deficiency, see Transcobalamin deficiency
• Transcortin deficiency, see Corticosteroid-binding globulin deficiency
• Transgrediens palmoplantar keratoderma of Siemens, see Mal de Meleda
• Transient neonatal diabetes mellitus 1, see 6q24-related transient neonatal diabetes mellitus
• Transmissible dementias, see Prion disease
• Transmissible spongiform encephalopathies, see Prion disease
• Transthyretin amyloidosis
• TRAPS, see Tumor necrosis factor receptor-associated periodic syndrome
• Treacher Collins syndrome
• Treacher Collins-Franceschetti syndrome, see Treacher Collins syndrome
• Tremor-ataxia with central hypomyelination, see Pol III-related leukodystrophy
• Tricho-hepato-enteric syndrome, see Trichohepatoenteric syndrome
• Tricho-rhino-phalangeal syndrome type II, see Trichorhinophalangeal syndrome type II
• Trichohepatoenteric syndrome
• Trichorhinophalangeal dysplasia type I, see Trichorhinophalangeal syndrome type I
• Trichorhinophalangeal syndrome type I
• Trichorhinophalangeal syndrome type II
• Trichorhinophalangeal syndrome with exostosis, see Trichorhinophalangeal syndrome type II
• Trichothiodystrophy
• Trifunctional protein deficiency, type 1, see Long-chain 3-hydroxyacyl-CoA dehydrogenase deficiency
• Trifunctional protein deficiency, type 2, see Mitochondrial trifunctional protein deficiency
• Triglyceride storage disease with ichthyosis, see Chanarin-Dorfman syndrome
• Triglyceride storage disease with impaired long-chain fatty acid oxidation, see Chanarin-Dorfman syndrome
• Trimethylaminuria
• Triose phosphate isomerase deficiency, see Triosephosphate isomerase deficiency
• Triosephosphate isomerase deficiency
• Triple A syndrome
• Triple H syndrome, see Ornithine translocase deficiency
• Triple symptom complex, see Behçet disease
• Triple X syndrome, see Trisomy X
• Triplo X syndrome, see Trisomy X
• Trisomy 13
• Trisomy 13 syndrome, see Trisomy 13
• Trisomy 18
• Trisomy 18 syndrome, see Trisomy 18
• Trisomy 21, see Down syndrome
• Trisomy 3q29, see 3q29 microduplication syndrome
• Trisomy 7q11.23, see 7q11.23 duplication syndrome
• Trisomy E syndrome, see Trisomy 18
• Trisomy G, see Down syndrome
• Trisomy X
• Trisomy X, see Trisomy X
• Trisomy Xq28, see MECP2 duplication syndrome
• TRMA, see Thiamine-responsive megaloblastic anemia syndrome
• TRNT1 deficiency
• TRNT1 enzyme deficiency, see TRNT1 deficiency
• TRNT1-related immunodeficiency, see TRNT1 deficiency
• TRNT1-related immunodeficiency+, see TRNT1 deficiency
• Troisier-Hanot-Chauffard syndrome, see Hereditary hemochromatosis
• Troyer syndrome
• TRP syndrome, see Trichorhinophalangeal syndrome type I
• TRPS I, see Trichorhinophalangeal syndrome type I
• TRPS II, see Trichorhinophalangeal syndrome type II
• TRPS1, see Trichorhinophalangeal syndrome type I
• TRPS2, see Trichorhinophalangeal syndrome type II
• True microcephaly, see Autosomal recessive primary microcephaly
• TS, see Turner syndrome
• TS, see Tourette syndrome
• TS, see Timothy syndrome
• TSD, see Tay-Sachs disease
• TSEs, see Prion disease
• TTD, see Trichothiodystrophy
• TTP, see Thrombotic thrombocytopenic purpura
• TUBB4A-associated hypomyelinating leukoencephalopathies, see TUBB4A-related leukodystrophy
• TUBB4A-related hypomyelinating leukodystrophy, see TUBB4A-related leukodystrophy
• TUBB4A-related leukodystrophy
• Tuberose sclerosis, see Tuberous sclerosis complex
• Tuberous sclerosis complex
• Tubular aggregate myopathy
• Tubular hypomagnesemia-hypokalemia with hypocalcuria, see Gitelman syndrome
• Tumor necrosis factor receptor-associated periodic syndrome
• Tumor of the Ewing family, see Ewing sarcoma
• Tumor of the urinary bladder, see Bladder cancer
• Tumor, Wilms, see Wilms tumor
• Turner phenotype with normal karyotype, see Noonan syndrome
• Turner syndrome
• Turner syndrome in female with X chromosome, see Noonan syndrome
• Turner's syndrome, see Turner syndrome
• Turner-Kieser syndrome, see Nail-patella syndrome
• Turner-like syndrome, see Noonan syndrome
• Type 1 diabetes
• Type 1 diabetes mellitus, see Type 1 diabetes
• Type 1 lissencephaly, see Isolated lissencephaly sequence
• Type 1 spinocerebellar ataxia, see Spinocerebellar ataxia type 1
• Type 2 diabetes
• Type 2 diabetes mellitus, see Type 2 diabetes
• Type 6 spinocerebellar ataxia, see Spinocerebellar ataxia type 6
• Type A insulin resistance, see Type A insulin resistance syndrome
• Type A insulin resistance syndrome
• Type I acrocephalosyndactyly, see Apert syndrome
• Type I familial amyloid polyneuropathy, see Transthyretin amyloidosis
• Type II 3β-hydroxysteroid dehydrogenase deficiency, see 3-beta-hydroxysteroid dehydrogenase deficiency
• Type II acrocephalosyndactyly, see Carpenter syndrome
• Type II ataxia with lactic acidosis, see Pyruvate carboxylase deficiency
• Type II familial amyloid polyneuropathy, see Transthyretin amyloidosis
• Type IV glycogenosis, see Glycogen storage disease type IV
• Typus degenerativus amstelodamensis, see Cornelia de Lange syndrome
• Tyrosinaemia, see Tyrosinemia
• Tyrosine hydroxylase deficiency
• Tyrosine hydroxylase-deficient dopa-responsive dystonia, see Tyrosine hydroxylase deficiency
• Tyrosinemia