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"

20 matching diseasesClear search ×

Dopa-responsive dystonia due to sepiapterin reductase deficiency

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

ORPHA:70594

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

Aromatase deficiency

Congenital estrogen deficiency

ORPHA:91

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

Fatty acyl-CoA reductase 1 deficiency

PFCRD · FAR1 deficiency

ORPHA:438178

Homocystinuria due to methylene tetrahydrofolate reductase deficiency

MTHFR deficiency · Methylene tetrahydrofolate reductase deficiency

ORPHA:395

Hyperlysinemia

Hyperlysinemia type I · Lysine alpha-ketoglutarate reductase deficiency

ORPHA:2203

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

Neurometabolic disorder due to serine deficiency

Serine deficiency

ORPHA:35705

Progressive encephalopathy with leukodystrophy due to DECR deficiency

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

ORPHA:431361

PYCR1-related De Barsy syndrome

PYCR1 deficiency · Pyrroline-5-carboxylate reductase 1 deficiency

ORPHA:293633

Pyruvate dehydrogenase E3-binding protein deficiency

2-oxoglutarate complex deficiency · Branched chain alpha-ketoacid dehydrogenase complex deficiency

ORPHA:255182

Recessive X-linked ichthyosis

RXLI · Steroid sulfatase deficiency

ORPHA:461

RIN2 syndrome

MACS syndrome · Macrocephaly-alopecia-cutis laxa-scoliosis syndrome

ORPHA:217335

Smith-Lemli-Opitz syndrome

7-dehydrocholesterol reductase deficiency · RSH syndrome

ORPHA:818

Xanthinuria type I

XDH deficiency · XO deficiency

ORPHA:93601