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

Median facial cleft

Midline facial cleft · Tessier number 0-14 and 30 facial cleft

ORPHA:141234

Median nodule of the upper lip

ORPHA:2699

Medich giant platelet syndrome

Medich macrothrombocytopenia

ORPHA:370127

Mediterranean macrothrombocytopenia

ORPHA:101022

Medium chain acyl-CoA dehydrogenase deficiency

ACADM deficiency · Carnitine deficiency secondary to medium-chain acyl-CoA dehydrogenase deficiency

ORPHA:42

MEDNIK syndrome

Intellectual disability-enteropathy-deafness-peripheral neuropathy-ichthyosis-keratodermia syndrome · Intellectual disability-enteropathy-hearing loss-peripheral neuropathy-ichthyosis-keratodermia syndrome

ORPHA:171851

Medullar disease

ORPHA:102000

Medullary sponge kidney

Cacchi-Ricci disease · MSK

ORPHA:1309

Medullary thyroid carcinoma

MTC

ORPHA:1332

Medulloblastoma

ORPHA:616

Medulloblastoma with extensive nodularity

MBEN

ORPHA:251858

Medulloepithelioma of the central nervous system

ORPHA:251883

Meesmann corneal dystrophy

Juvenile hereditary epithelial dystrophy of Meesmann · MECD

ORPHA:98954

Mega-cisterna magna

ORPHA:97252

Megaconial congenital muscular dystrophy

Congenital megaconial myopathy · Congenital muscular dystrophy with mitochondrial structural abnormalities

ORPHA:280671

Megacystis-megaureter syndrome

Megaureter-megacystis syndrome

ORPHA:238637

Megacystis-microcolon-intestinal hypoperistalsis syndrome

Berdon syndrome · MMIHS

ORPHA:2241

Megakaryoblastic acute myeloid leukemia with t(1;22)(p13;q13)

Acute myeloid leukemia · AML

ORPHA:402023

Megalencephalic leukoencephalopathy with subcortical cysts

MLC · Megalencephalic leukodystrophy

ORPHA:2478

Megalencephaly-capillary malformation-polymicrogyria syndrome

MCAP · MCM

ORPHA:60040

Megalencephaly-polymicrogyria-postaxial polydactyly-hydrocephalus syndrome

MPPH syndrome

ORPHA:83473

Megalencephaly-severe kyphoscoliosis-overgrowth syndrome

ORPHA:457359

Megaloblastic anemia-immunodeficiency due to folate transporter 1 deficiency

ORPHA:661412

Megalocornea-intellectual disability syndrome

MMR syndrome · Neuhäuser syndrome

ORPHA:2479

MEGDEL syndrome

3-methylglutaconic aciduria with deafness-encephalopathy-Leigh-like syndrome · 3-methylglutaconic aciduria with hearing loss-encephalopathy-Leigh-like syndrome

ORPHA:352328

MEHMO syndrome

X-linked intellectual disability-epileptic seizures-hypogenitalism-microcephaly-obesity syndrome

ORPHA:85282

Meige disease

Hereditary lymphedema type II · Meige lymphedema

ORPHA:90186

Meigs syndrome

Demons-Meigs syndrome

ORPHA:314451

Melanoma and neural system tumor syndrome

Melanoma-astrocytoma syndrome

ORPHA:252206

Melanoma of soft tissue

Clear cell sarcoma of the tendons and aponeuroses

ORPHA:97338

MELAS

Mitochondrial encephalopathy, lactic acidosis, and stroke-like episodes · Mitochondrial encephalomyopathy, lactic acidosis and stroke-like episodes

ORPHA:550

Melhem-Fahl syndrome

ORPHA:2482

Melioidosis

Burkholderia pseudomallei infection

ORPHA:31202

Melkersson-Rosenthal syndrome

ORPHA:2483

Melnick-Needles syndrome

Melnick-Needles osteodysplasty

ORPHA:2484

Melorheostosis

ORPHA:2485

Melorheostosis with osteopoikilosis

MSBD syndrome · Mixed sclerosing bone dystrophy

ORPHA:1879

MEND syndrome

Male EBP disorder with neurological defects

ORPHA:401973

Mendelian susceptibility to mycobacterial diseases

Idiopathic infection caused by BCG or atypical mycobacteria · MSMD

ORPHA:748

Mendelian susceptibility to mycobacterial diseases due to complete IFNgammaR1 deficiency

MSMD due to complete IFNgammaR1 deficiency · MSMD due to complete interferon gamma receptor 1 deficiency

ORPHA:99898

Mendelian susceptibility to mycobacterial diseases due to complete IFNgammaR2 deficiency

MSMD due to complete IFNgammaR2 deficiency · MSMD due to complete interferon gamma receptor 2 deficiency

ORPHA:319547

Mendelian susceptibility to mycobacterial diseases due to complete IL12B deficiency

MSMD due to complete IL12B deficiency · MSMD due to complete interleukin 12B deficiency

ORPHA:319558

Mendelian susceptibility to mycobacterial diseases due to complete IL12RB1 deficiency

MSMD due to complete IL12RB1 deficiency · MSMD due to complete interleukin 12 receptor beta 1 deficiency

ORPHA:319552

Mendelian susceptibility to mycobacterial diseases due to complete ISG15 deficiency

MSMD due to complete ISG15 deficiency

ORPHA:319563

Mendelian susceptibility to mycobacterial diseases due to complete RORgamma receptor deficiency

MSMD due to complete RORgamma receptor defiency · Primary immunodeficiency due to RORC mutation

ORPHA:477857

Mendelian susceptibility to mycobacterial diseases due to partial IRF8 deficiency

MSMD due to partial IRF8 deficiency · MSMD due to partial interferon regulatory factor 8 deficiency

ORPHA:319600

Mendelian susceptibility to mycobacterial diseases due to partial STAT1 deficiency

MSMD due to partial STAT1 deficiency · MSMD due to partial signal transducer and activator of transcription 1 deficiency

ORPHA:319595

Ménétrier disease

Hypoproteinemic hypertrophic gastropathy · Giant hypertrophic gastritis

ORPHA:2494