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

Marie Unna hereditary hypotrichosis

Hypotrichosis, Marie Unna type · MUHH

ORPHA:444

Marin-Amat syndrome

ORPHA:101104

Marinesco-Sjögren syndrome

ORPHA:559

Marshall syndrome

ORPHA:560

Marshall-Smith syndrome

Accelerated skeletal maturation-facial dysmorphism-failure to thrive syndrome

ORPHA:561

Martínez-Frías syndrome

Duodenal and extrahepatic biliary atresia-hypoplastic pancreas-intestinal malrotation syndrome

ORPHA:137862

Martinique crinkled retinal pigment epitheliopathy

MCRPE

ORPHA:466718

MASA syndrome

Intellectual disability-aphasia-shuffling gait-adducted thumbs syndrome

ORPHA:2466

MASS syndrome

Mitral valve-aorta-skeleton-skin syndrome

ORPHA:99715

Mast cell leukemia

ORPHA:98851

Mast cell sarcoma

ORPHA:66661

Mastocytosis

ORPHA:98292

Maternal disease-related embryofetopathy

ORPHA:251535

Maternal hyperthermia-induced birth defects

ORPHA:2216

Maternal phenylketonuria syndrome

Hyperphenylalaninemic embryopathy · Maternal hyperphenylalaninemia

ORPHA:2209

Maternal riboflavin deficiency

ORPHA:411712

Maternal uniparental disomy of chromosome 1 syndrome

UPD(1)mat

ORPHA:251009

Maternal uniparental disomy of chromosome 13 syndrome

UPD(13)mat

ORPHA:97678

Maternal uniparental disomy of chromosome 16 syndrome

UPD(16)mat

ORPHA:96185

Maternal uniparental disomy of chromosome 2 syndrome

UPD(2)mat

ORPHA:96179

Maternal uniparental disomy of chromosome 20 syndrome

UPD(20)mat · Maternal UPD(20)

ORPHA:96186

Maternal uniparental disomy of chromosome 21 syndrome

UPD(21)mat

ORPHA:96187

Maternal uniparental disomy of chromosome 22 syndrome

UPD(22)mat

ORPHA:96188

Maternal uniparental disomy of chromosome 4 syndrome

UPD(4)mat

ORPHA:96180

Maternal uniparental disomy of chromosome 6 syndrome

UPD(6)mat

ORPHA:96181

Maternal uniparental disomy of chromosome 9 syndrome

UPD(9)mat

ORPHA:96183

Maternal uniparental disomy of chromosome X syndrome

UPD(X)mat

ORPHA:261519

Maternal uniparental disomy syndrome

ORPHA:98153

Matthew-Wood syndrome

Spear syndrome · Anophthalmia-pulmonary hypoplasia syndrome

ORPHA:2470

Maxillonasal dysplasia

Binder syndrome · Maxillonasal dysostosis

ORPHA:1248

May-Hegglin thrombocytopenia

MHA · May-Hegglin anomaly

ORPHA:850

May-Thurner syndrome

MTS · Cockett syndrome

ORPHA:675404

Mayer-Rokitansky-Küster-Hauser syndrome

MRKH syndrome · Rokitansky syndrome

ORPHA:3109

Mayer-Rokitansky-Küster-Hauser syndrome type 1

Congenital absence of uterus and vagina · MRKH syndrome type 1

ORPHA:247775

Mayer-Rokitansky-Küster-Hauser syndrome type 2

Atypical MRKH syndrome · MRKH syndrome type 2

ORPHA:2578

Mazabraud syndrome

Myxoma with fibrous dysplasia

ORPHA:57782

MBD4-related tumor predisposition syndrome

ORPHA:661526

McCune-Albright syndrome

ORPHA:562

McDonough syndrome

ORPHA:2471

McKusick-Kaufman syndrome

Hydrometrocolpos-postaxial polydactyly syndrome · Kaufman-Mckusick syndrome

ORPHA:2473

McLeod neuroacanthocytosis syndrome

MLS · X-linked McLeod syndrome

ORPHA:59306

Meacham syndrome

Meacham-Winn-Culler syndrome · Rhabdomyomatous dysplasia-cardiopathy-genital anomalies syndrome

ORPHA:3097

Meckel syndrome

Dysencephalia splanchnocystica · Meckel-Gruber syndrome

ORPHA:564

Meconium aspiration syndrome

ORPHA:70588

MECP2-related severe neonatal encephalopathy

Severe congenital encephalopathy due to MECP2 mutation

ORPHA:209370

Medial condensing osteitis of the clavicle

Osteitis condensans of the clavicle

ORPHA:57196

Median cleft lip/mandible

Median mandibular cleft · Median cleft lower facial stage

ORPHA:2006

Median cleft of the upper lip and maxilla

ORPHA:141239