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"

25 matching diseasesClear search ×

PYCR1-related De Barsy syndrome

PYCR1 deficiency · Pyrroline-5-carboxylate reductase 1 deficiency

ORPHA:293633

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

ALDH18A1-related De Barsy syndrome

Delta-1-pyrroline 5-carboxylate synthetase deficiency · Neurocutaneous syndrome, Bicknell type

ORPHA:35664

Biotinidase deficiency

Juvenile-onset multiple carboxylase deficiency · Late-onset multiple carboxylase deficiency

ORPHA:79241

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

Global developmental delay-alopecia-macrocephaly-facial dysmorphism-structural brain anomalies syndrome

Ornithine decarboxylase deficiency · Bachmann-Bupp syndrome

ORPHA:544488

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

Hyperprolinemia type 2

Delta-1-pyrroline-5-carboxylate dehydrogenase deficiency

ORPHA:79101

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

Multiple carboxylase deficiency

MCD

ORPHA:148

Phosphoenolpyruvate carboxykinase deficiency

PEPCK deficiency

ORPHA:2880

Progressive encephalopathy with leukodystrophy due to DECR deficiency

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

ORPHA:431361

Propionic acidemia

Ketotic hyperglycinemia · Propionic aciduria

ORPHA:35

Pyruvate carboxylase deficiency

Ataxia with lactic acidosis type 2 · Ataxia with lactic acidosis type II

ORPHA:3008

Pyruvate carboxylase deficiency, benign type

Pyruvate carboxylase deficiency type C

ORPHA:353320

Pyruvate carboxylase deficiency, infantile type

Pyruvate carboxylase deficiency type A

ORPHA:353308

Pyruvate carboxylase deficiency, severe neonatal type

Pyruvate carboxylase deficiency type B

ORPHA:353314

Pyruvate dehydrogenase E1-alpha deficiency

PDHAD · Pyruvate decarboxylase deficiency

ORPHA:79243