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"

10,912 rare diseases

Antiphospholipid syndrome

Classic antiphospholipid syndrome · APLS

ORPHA:80

Antisynthetase syndrome

AS syndrome · Anti-Jo1 syndrome

ORPHA:81

Antley-Bixler syndrome

ORPHA:83

Antley-Bixler syndrome with genital anomaly and disorder of steroidogenesis

Ambiguous genitalia-disordered steroidogenesis Antley-Bixler syndrome

ORPHA:63269

Antley-Bixler syndrome without genital anomaly or disorder of steroidogenesis

ORPHA:596008

Aortic arch anomaly-facial dysmorphism-intellectual disability syndrome

ORPHA:1110

Aortic arch defects

ORPHA:1132

Aortic arch interruption

ORPHA:2299

Aortic dilatation-joint hypermobility-arterial tortuosity syndrome

ORPHA:88636

Aortic malformation

ORPHA:98718

Aorto-left ventricular tunnel

ORPHA:99071

Aorto-right ventricular tunnel

ORPHA:99070

Aorto-ventricular tunnel

ORPHA:3400

Apert syndrome

ACS1 · Acrocephalosyndactyly type 1

ORPHA:87

Aphalangy-hemivertebrae-urogenital-intestinal dysgenesis syndrome

Johnson-Munson syndrome

ORPHA:1112

Aphalangy-syndactyly-microcephaly syndrome

ORPHA:1113

Aphonia-deafness-retinal dystrophy-bifid halluces-intellectual disability syndrome

Aphonia-hearing loss-retinal dystrophy-duplicated halluces-intellectual disability syndrome · Aphonia-deafness-retinal dystrophy-duplicated halluces-intellectual disability syndrome

ORPHA:324540

Aplasia cutis congenita

ORPHA:1114

Aplasia cutis congenita-intestinal lymphangiectasia syndrome

Bronspiegel-Zelnick syndrome

ORPHA:1116

Aplasia cutis-myopia syndrome

Gershoni-Baruch-Leibo syndrome

ORPHA:1117

Aplasia of lacrimal and salivary glands

ALSG · Congenital absence of lacrimal puncta and salivary glands

ORPHA:86815

Aplastic anemia-intellectual disability-dwarfism syndrome

AMeD syndrome

ORPHA:611216

Apnea of prematurity

ORPHA:99981

Apolipoprotein A-I deficiency

ApoA-I deficiency · Familial apoA-I deficiency

ORPHA:425

Apparent mineralocorticoid excess

11-beta-hydroxysteroid dehydrogenase deficiency type 2 · Ulick syndrome

ORPHA:320

Aprosencephaly

ORPHA:566857

Aprosencephaly cerebellar dysgenesis

ORPHA:1126

Aprosencephaly/atelencephaly spectrum

AP/AT spectum

ORPHA:566847

Aquagenic palmoplantar keratoderma

Aquagenic keratoderma · Transient reactive papulotranslucent acrokeratoderma

ORPHA:498359

Arachnodactyly-abnormal ossification-intellectual disability syndrome

Kosztolanyi syndrome

ORPHA:1129

Arachnodactyly-intellectual disability-dysmorphism syndrome

De Die-Smulders-Vles-Fryns syndrome

ORPHA:1130

Arachnoid cyst

ORPHA:2356

Arachnoiditis

Adhesive arachnoiditis · Chronic arachnoiditis

ORPHA:137817

AREDYLD syndrome

Acrorenal defect-ectodermal dysplasia-diabetes syndrome

ORPHA:1133

Argentine hemorrhagic fever

Argentinian hemorrhagic fever · Junin hemorrhagic fever

ORPHA:319223

Arginine vasopressin deficiency

CDI · Neurogenic diabetes insipidus

ORPHA:178029

Arginine vasopressin resistance

Nephrogenic diabetes insipidus

ORPHA:223

Arginine vasopressin resistance-intracranial calcification-short stature-facial dysmorphism syndrome

Nephrogenic diabetes insipidus-intracranial calcification-short stature-facial dysmorphism syndrome

ORPHA:3145

Argininosuccinic aciduria

ASA deficiency · ASL deficiency

ORPHA:23

Argyria

Silver staining

ORPHA:60014

Arnold-Chiari malformation type I

Arnold-Chiari malformation type 1 · Chiari malformation type 1

ORPHA:268882

Aromatase deficiency

Congenital estrogen deficiency

ORPHA:91

Aromatase excess syndrome

AEXS · Familial hyperestrogenism

ORPHA:178345

Aromatic L-amino acid decarboxylase deficiency

AADC deficiency

ORPHA:35708

Arrhinia-choanal atresia-microphthalmia syndrome

ORPHA:1135

Arterial dissection-lentiginosis syndrome

ORPHA:1682

Arterial duct anomaly

Patent ductus arteriosus anomalies

ORPHA:95485

Arterial thoracic outlet syndrome

ATOS · Arterial TOS

ORPHA:357107