Rare Disease Library

Browse Orphanet-curated rare diseases with HPO phenotype annotations, synonyms, and linked support programs. Search by name, abbreviation, or synonym.

Try: "IgA nephropathy", "C3G", "Berger's disease", "PKU", "Duchenne"

200 matching diseasesClear search ×

Hemolytic anemia due to pyrimidine 5' nucleotidase deficiency

P5N deficiency · UMPH1 deficiency

ORPHA:35120

Hemolytic uremic syndrome with DGKE deficiency

HUS with DGKE deficiency

ORPHA:357008

Histidinemia

HAL deficiency · HIS deficiency

ORPHA:2157

Homocystinuria due to methylene tetrahydrofolate reductase deficiency

MTHFR deficiency · Methylene tetrahydrofolate reductase deficiency

ORPHA:395

HSD10 disease

2-methyl-3-hydroxybutyric aciduria · 2-methyl-3-hydroxybutyryl-CoA dehydrogenase deficiency

ORPHA:391417

Hydroxykynureninuria

Kynureninase deficiency · Xanthurenic aciduria

ORPHA:79155

Hyper-IgM syndrome type 2

AID deficiency · Activation-induced cytidine deaminase deficiency

ORPHA:101089

Hyperammonemia due to N-acetylglutamate synthase deficiency

NAGS deficiency

ORPHA:927

Hyperammonemic encephalopathy due to carbonic anhydrase VA deficiency

CA-VA deficiency

ORPHA:401948

Hyperinsulinism due to short chain 3-hydroxylacyl-CoA dehydrogenase deficiency

Hyperinsulinemic hypoglycemia due to short chain 3-hydroxylacyl-CoA dehydrogenase deficiency · Hyperinsulinism due to SCHAD deficiency

ORPHA:71212

Hyperornithinemia-hyperammonemia-homocitrullinuria syndrome

HHH syndrome · ORNT1 deficiency

ORPHA:415

Hypoxanthine guanine phosphoribosyltransferase partial deficiency

HPRT deficiency, grade I · HPRT partial deficiency

ORPHA:79233

Hypoxanthine-guanine phosphoribosyltransferase deficiency

HPRT deficiency · HPRT1 deficiency

ORPHA:206428

Immunodeficiency by defective expression of MHC class I

MHC class I deficiency · Bare lymphocyte syndrome type 1

ORPHA:34592

Immunodeficiency by defective expression of MHC class II

MHC class II deficiency · Bare lymphocyte syndrome type 2

ORPHA:572

Infantile-onset periodic fever-panniculitis-dermatosis syndrome

OTULIN-related autoinflammatory syndrome · OTULIN deficiency

ORPHA:500062

Intellectual disability-facial dysmorphism-joint hypermobility-hearing loss syndrome

Beck-Fahrner syndrome · TET3-related Beck-Fahrner syndrome

ORPHA:684216

Isolated congenital hypogonadotropic hypogonadism

Isolated congenital gonadotropin deficiency · Gonadotropic deficiency

ORPHA:238666

Isolated cytochrome C oxidase deficiency

Isolated COX deficiency · Isolated mitochondrial respiratory chain complex IV deficiency

ORPHA:254905

Isolated follicle stimulating hormone deficiency

Isolated FSH deficiency

ORPHA:52901

Isolated thyroid-stimulating hormone deficiency

Isolated thyrotropin deficiency · Isolated TSH deficiency

ORPHA:90674

Isolated thyrotropin-releasing hormone deficiency

Isolated TRF deficiency · Isolated TRH deficiency

ORPHA:238670

Krabbe disease

GALC deficiency · Galactocerebrosidase deficiency

ORPHA:487

L-Arginine:glycine amidinotransferase deficiency

AGAT deficiency

ORPHA:35704

L-ferritin deficiency

ORPHA:440731

Laron syndrome

Complete growth hormone insensitivity · GH receptor deficiency

ORPHA:633

LCAT deficiency

Lecithin-cholesterol acyltransferase deficiency

ORPHA:650

Lesch-Nyhan syndrome

HPRT complete deficiency · HPRT deficiency grade IV

ORPHA:510

LIG4 syndrome

DNA ligase IV deficiency · Ligase 4 syndrome

ORPHA:99812

Long chain 3-hydroxyacyl-CoA dehydrogenase deficiency

LCHAD deficiency · LCHADD

ORPHA:5

Lysosomal acid lipase deficiency

LAL deficiency · LALD

ORPHA:275761

Malonic aciduria

Malonyl-CoA decarboxylase deficiency · Malonic acidemia

ORPHA:943

Maple syrup urine disease

BCKD deficiency · BCKDH deficiency

ORPHA:511

Medium chain acyl-CoA dehydrogenase deficiency

ACADM deficiency · Carnitine deficiency secondary to medium-chain acyl-CoA dehydrogenase deficiency

ORPHA:42

Methionine adenosyltransferase I/III deficiency

MAT I/III deficiency · Mudd's disease

ORPHA:168598

Methylmalonic acidemia due to methylmalonyl-CoA epimerase deficiency

MCEE deficiency · Methylmalonic acidemia due to methylmalonyl-CoA racemase deficiency

ORPHA:308425

Microcephaly-congenital cataract-psoriasiform dermatitis syndrome

Sterol-C4-methyl oxidase deficiency · SMO deficiency

ORPHA:488168

Mitochondrial myopathy with reversible cytochrome C oxidase deficiency

Benign COX deficiency · Infantile reversible cytochrome C oxidase deficiency myopathy

ORPHA:254864

Mitochondrial short-chain enoyl-CoA hydratase 1 deficiency

Crotonase deficiency · ECHS1D

ORPHA:653880

Mitochondrial trifunctional protein deficiency

TFP deficiency · TFPD

ORPHA:746

MOGS-CDG

CDG syndrome type IIb · CDG-IIb

ORPHA:79330

Mucopolysaccharidosis type 4A

GALNS deficiency · Galactosamine-6-sulfatase deficiency

ORPHA:309297

Mucopolysaccharidosis type 6

ARSB deficiency · ASB deficiency

ORPHA:583

Müllerian aplasia and hyperandrogenism

Müllerian duct failure and hyperandrogenism · WNT4 deficiency

ORPHA:247768

Multiple acyl-CoA dehydrogenase deficiency

Glutaric acidemia type 2 · Glutaric aciduria type 2

ORPHA:26791

Multiple acyl-CoA dehydrogenase deficiency, mild type

MAD deficiency, mild type · MADD, mild type

ORPHA:394532

Multiple mitochondrial dysfunctions syndrome type 1

NFU1 deficiency · MMDS1

ORPHA:401869

Multiple mitochondrial dysfunctions syndrome type 2

BOLA3 deficiency · MMDS2

ORPHA:401874