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

Isolated ulnar hemimelia

Isolated ulnar deficiency of forearm · Isolated ulnar longitudinal meromelia

ORPHA:93320

Isolated unilateral hemispheric cerebellar hypoplasia

ORPHA:269218

Isosporiasis

Cystoisosporiasis

ORPHA:472

Isotretinoin syndrome

Isotretinoin embryopathy · Retinoic acid embryopathy

ORPHA:2305

Isotretinoin-like syndrome

Kawashima syndrome · Microtia-aortic arch syndrome

ORPHA:2306

Isovaleric acidemia

Isovaleric acid CoA dehydrogenase deficiency

ORPHA:33

ISPD-related limb-girdle muscular dystrophy R20

LGMD2U · Autosomal recessive limb-girdle muscular dystrophy type 2U

ORPHA:352479

ITM2B amyloidosis

ITM2B-related amyloidosis · ITM2B-related cerebral amyloid angiopathy

ORPHA:439254

ITPA-related lethal infantile neurological disorder with cataract and cardiac involvement

Martsolf-like syndrome

ORPHA:457375

IVIC syndrome

Oculo-oto-radial syndrome · Radial ray defects, hearing impairment, external ophthalmoplegia, and thrombocytopenia

ORPHA:2307

Jackson-Weiss syndrome

Craniosynostosis-midfacial hypoplasia-foot abnormalities syndrome · JWS

ORPHA:1540

Jacobsen syndrome

Chromosome 11q deletion syndrome · Del(11)(q23.3)

ORPHA:2308

Jalili syndrome

Cone rod dystrophy-amelogenesis imperfecta syndrome

ORPHA:1873

Jansen-de Vries syndrome

JDVS · Developmental delay-behavorial problems-small hands and feet-cyclic vomiting-dysmorphic features syndrome

ORPHA:653767

Japanese encephalitis

ORPHA:79139

Jawad syndrome

ORPHA:313795

Jejunal neuroendocrine tumor

Jejunal neuroendocrine neoplasm

ORPHA:100077

Jervell and Lange-Nielsen syndrome

Long QT interval-deafness syndrome · Long QT interval-hearing loss syndrome

ORPHA:90647

Jessner lymphocytic infiltration of the skin

Jessner-Kanof lymphocytic infiltration of the skin

ORPHA:33314

Jeune syndrome

Asphyxiating thoracic dystrophy of the newborn · JATD

ORPHA:474

JMP syndrome

Joint contractures-muscular atrophy-microcytic anemia-panniculitis-associated lipodystrophy syndrome

ORPHA:324999

Johanson-Blizzard syndrome

JBS

ORPHA:2315

Johnson neuroectodermal syndrome

Alopecia-anosmia-deafness-hypogonadism syndrome · Johnson-McMillin syndrome

ORPHA:2316

Joubert syndrome and related disorders

JSRD

ORPHA:140874

Joubert syndrome with hepatic defect

COACH syndrome · Cerebellar vermis hypoplasia-oligophrenia-congenital ataxia-coloboma-hepatic fibrosis

ORPHA:1454

Joubert syndrome with Jeune asphyxiating thoracic dystrophy

JBTS with JATD · Joubert syndrome with JATD

ORPHA:397715

Joubert syndrome with ocular defect

JS-O · Joubert syndrome with retinopathy

ORPHA:220493

Joubert syndrome with oculorenal defect

Arima syndrome · CORS

ORPHA:2318

Joubert syndrome with renal defect

JS-R

ORPHA:220497

Juberg-Hayward syndrome

Cleft lip/palate-abnormal thumbs-microcephaly syndrome · Orocraniodigital syndrome

ORPHA:2319

Juberg-Marsidi syndrome

ORPHA:93972

Junctional epidermolysis bullosa

Epidermolysis bullosa atrophicans · JEB

ORPHA:305

Junctional epidermolysis bullosa inversa

JEB inversa · JEB-I

ORPHA:79405

Junctional epidermolysis bullosa with pyloric atresia

Carmi syndrome · JEB-PA

ORPHA:79403

Jung syndrome

ORPHA:2321

Juvenile absence epilepsy

JAE

ORPHA:1941

Juvenile amyotrophic lateral sclerosis

ALS · Charcot disease

ORPHA:300605

Juvenile cataract-microcornea-renal glucosuria syndrome

Juvenile cataract-microcornea-renal glycosuria syndrome

ORPHA:247794

Juvenile CLN1 disease

Juvenile neuronal ceroid lipofuscinosis type 1

ORPHA:699739

Juvenile CLN10 disease

Juvenile neuronal ceroid lipofuscinosis type 10

ORPHA:700497

Juvenile CLN2 disease

Juvenile neuronal ceroid lipofuscinosis type 2

ORPHA:699769

Juvenile CLN3 disease

Juvenile neuronal ceroid lipofuscinosis type 3

ORPHA:699780

Juvenile CLN5 disease

Juvenile neuronal ceroid lipofuscinosis type 5

ORPHA:699807

Juvenile CLN6 disease

Juvenile neuronal ceroid lipofuscinosis type 6

ORPHA:700472

Juvenile dermatomyositis

Juvenile DM

ORPHA:93672

Juvenile glaucoma

ORPHA:98977

Juvenile Huntington disease

JHD · Juvenile Huntington chorea

ORPHA:248111

Juvenile hyaline fibromatosis

Murray-Puretic-Drescher syndrome · Puretic syndrome

ORPHA:2028