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"

22 matching diseasesClear search ×

Progressive encephalopathy with leukodystrophy due to DECR deficiency

2,4-dienoyl-CoA reductase deficiency · DECR deficiency with hyperlysinemia

ORPHA:431361

3-hydroxy-3-methylglutaric aciduria

3-hydroxy-3-methylglutaryl-CoA lyase deficiency · HMG-CoA lyase deficiency

ORPHA:20

3-hydroxy-3-methylglutaryl-CoA synthase deficiency

HMG-CoA synthase deficiency

ORPHA:35701

3-methylglutaconic aciduria type 1

3-methylglutaconyl-CoA hydratase deficiency · 3MG-CoA hydratase deficiency

ORPHA:67046

46,XY difference of sex development due to 17-beta-hydroxysteroid dehydrogenase 3 deficiency

17-beta-hydroxysteroid dehydrogenase 3 deficiency · 17-ketoreductase deficiency

ORPHA:752

46,XY difference of sex development due to 5-alpha-reductase 2 deficiency

46,XY DSD due to 5-alpha-reductase 2 deficiency · Pseudovaginal perineoscrotal hypospadias

ORPHA:753

Acyl-CoA dehydrogenase 9 deficiency

ACAD9 deficiency

ORPHA:99901

Acyl-CoA dehydrogenase deficiency

ORPHA:309120

Congenital bile acid synthesis defect type 4

2-methylacyl-CoA racemase deficiency · AMACR deficiency

ORPHA:79095

Congenital lactase deficiency

ORPHA:53690

Constitutional megaloblastic anemia with severe neurologic disease

DHFR deficiency · Dihydrofolate reductase deficiency

ORPHA:319651

Dihydropteridine reductase deficiency

Hyperphenylalaninemia due to dihydropteridine reductase deficiency · PKU type 2

ORPHA:226

Dopa-responsive dystonia due to sepiapterin reductase deficiency

Autosomal recessive sepiapterin reductase-deficient DRD · DRD due to SRD

ORPHA:70594

Fatty acyl-CoA reductase 1 deficiency

PFCRD · FAR1 deficiency

ORPHA:438178

Glutaric acidemia type 3

Glutaric aciduria type 3 · Glutaryl-CoA oxidase deficiency

ORPHA:35706

Isolated complex I deficiency

Isolated NADH-coenzyme Q reductase deficiency · Isolated NADH-ubiquinone reductase deficiency

ORPHA:2609

Isolated complex III deficiency

Isolated CoQ-cytochrome C reductase deficiency · Isolated coenzyme Q-cytochrome C reductase deficiency

ORPHA:1460

Isolated succinate-CoQ reductase deficiency

Isolated mitochondrial respiratory chain complex II deficiency · Isolated succinate-coenzyme Q reductase deficiency

ORPHA:3208

PYCR1-related De Barsy syndrome

PYCR1 deficiency · Pyrroline-5-carboxylate reductase 1 deficiency

ORPHA:293633

Smith-Lemli-Opitz syndrome

7-dehydrocholesterol reductase deficiency · RSH syndrome

ORPHA:818

Vitamin B12-unresponsive methylmalonic acidemia

Methylmalonyl-Coenzyme A mutase deficiency · Vitamin B12-unresponsive methylmalonic aciduria

ORPHA:27

Xanthinuria type I

XDH deficiency · XO deficiency

ORPHA:93601