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

MMEP syndrome

MCOPS8 · Microcephaly-microphthalmia-ectrodactyly of lower limbs-prognathism syndrome

ORPHA:3434

Moderate and severe traumatic brain injury

ORPHA:90056

Moderate hemophilia A

Moderate congenital factor VIII deficiency · Moderate congenital F8 deficiency

ORPHA:169805

Moderate hemophilia B

Moderate congenital F9 deficiency · Moderate congenital factor IX deficiency

ORPHA:169796

Moderate multiminicore disease with hand involvement

ORPHA:178145

Moderately-differentiated thymic neuroendocrine carcinoma

ORPHA:263335

MODY

Maturity-onset diabetes of the young

ORPHA:552

Moebius syndrome

Möbius syndrome

ORPHA:570

Moebius syndrome-axonal neuropathy-hypogonadotropic hypogonadism syndrome

ORPHA:2560

MOGS-CDG

CDG syndrome type IIb · CDG-IIb

ORPHA:79330

Mohr-Tranebjaerg syndrome

DDON syndrome · Deafness-dystonia-optic neuronopathy syndrome

ORPHA:52368

MOMO syndrome

Macrocephaly-obesity-intellectual disability-ocular abnormalities syndrome · Macrosomia-obesity-macrocephaly-ocular abnormalities syndrome

ORPHA:2563

Monilethrix

Moniliform hair syndrome

ORPHA:573

Monoamine oxidase A deficiency

Brunner syndrome

ORPHA:3057

Monoclonal mast cell activation syndrome

Monoclonal MCAD

ORPHA:529468

Monogenic disease with epilepsy

ORPHA:166472

Monomelic amyotrophy

Benign focal amyotrophy · Hirayama disease

ORPHA:65684

Monomorphic epitheliotropic intestinal T-cell lymphoma

MEITL · Enteropathy-associated T-cell lymphoma type 2

ORPHA:652658

Mononen-Karnes-Senac syndrome

Skeletal dysplasia-brachydactyly syndrome

ORPHA:2565

Monosomy 13q14 syndrome

Del(13)(q14) · Deletion 13q14

ORPHA:1587

Monosomy 13q34 syndrome

Del(13)(q34) · Distal deletion 13q34

ORPHA:96168

Monosomy 18p syndrome

18p- syndrome · De Grouchy syndrome type 1

ORPHA:1598

Monosomy 18q syndrome

18q- syndrome · Deletion 18q

ORPHA:1600

Monosomy 22 syndrome

Del(22) · Deletion 22

ORPHA:96123

Monosomy 5p syndrome

Cri du chat syndrome · Deletion 5p

ORPHA:281

Monosomy 9p syndrome

9p deletion syndrome · 9p- syndrome

ORPHA:261112

Monosomy 9q22.3 syndrome

Microdeletion 9q22.3

ORPHA:77301

Monosomy X syndrome

ORPHA:99226

Monostotic fibrous dysplasia

Jaffe-Lichtenstein disease

ORPHA:93277

Moore-Federman syndrome

Dwarfism-stiff joint-ocular abnormalities syndrome

ORPHA:2569

Mooren ulcer

ORPHA:519408

Morgagni-Stewart-Morel syndrome

Hyperostosis frontalis interna

ORPHA:77296

MORM syndrome

Intellectual disability-truncal obesity-retinal dystrophy-micropenis syndrome

ORPHA:75858

Morning glory disc anomaly

Morning glory syndrome · Ectasic coloboma

ORPHA:35737

Morvan syndrome

Limbic encephalitis-neuromyotonia-hyperhidrosis-polyneuropathy syndrome · Morvan fibrillary chorea

ORPHA:83467

Mosaic genome-wide paternal uniparental disomy syndrome

Androgenetic/biparental mosaicism · Genome-wide paternal uniparental disomy mosaicism

ORPHA:329813

Mosaic Legius syndrome

Mosaic NF1-like syndrome · Mosaic neurofibromatosis 1-like syndrome

ORPHA:634511

Mosaic monosomy X syndrome

ORPHA:99228

Mosaic neurofibromatosis type 1

MNF1 · Mosaic NF1

ORPHA:634461

Mosaic NF2-related schwannomatosis

Mosaic neurofibromatosis type 2 · Mosaic NF2

ORPHA:634475

Mosaic schwannomatosis

Mosaic SWN · MNF3

ORPHA:634492

Mosaic trisomy 1 syndrome

Mosaic trisomy chromosome 1 · Trisomy 1 mosaicism

ORPHA:1692

Mosaic trisomy 10 syndrome

Trisomy 10 mosaicism · Mosaic trisomy chromosome 10

ORPHA:96063

Mosaic trisomy 12 syndrome

Mosaic trisomy chromosome 12 · Trisomy 12 mosaicism

ORPHA:1698

Mosaic trisomy 14 syndrome

Mosaic trisomy chromosome 14 · Trisomy 14 mosaicism

ORPHA:1703

Mosaic trisomy 15 syndrome

Trisomy 15 mosaicism · Mosaic trisomy chromosome 15

ORPHA:1706

Mosaic trisomy 16 syndrome

Mosaic trisomy chromosome 16 · Trisomy 16 mosaicism

ORPHA:1708

Mosaic trisomy 17 syndrome

Trisomy 17 mosaicism · Mosaic trisomy chromosome 17

ORPHA:1711