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

Mucopolysaccharidosis type 4

MPS4 · MPSIV

ORPHA:582

Mucopolysaccharidosis type 4A

GALNS deficiency · Galactosamine-6-sulfatase deficiency

ORPHA:309297

Mucopolysaccharidosis type 4B

Beta-D-galactosidase deficiency · MPS4B

ORPHA:309310

Mucopolysaccharidosis type 6

ARSB deficiency · ASB deficiency

ORPHA:583

Mucopolysaccharidosis type 6, rapidly progressing

Arylsulfatase B deficiency, rapidly progressing · MPS6, rapidly progressing

ORPHA:276212

Mucopolysaccharidosis type 6, slowly progressing

Arylsulfatase B deficiency, slowly progressing · MPS6, slowly progressing

ORPHA:276223

Mucopolysaccharidosis type 7

Beta-glucuronidase deficiency · MPS7

ORPHA:584

Mucopolysaccharidosis with skin involvement

MPS with skin involvement

ORPHA:79388

Mucopolysaccharidosis-like syndrome with congenital heart defects and hematopoietic disorders

Mucopolysaccharidosis-like plus disease

ORPHA:505248

Mucous membrane pemphigoid

Cicatricial pemphigoid · Mucosal pemphigoid

ORPHA:46486

Mueller-Weiss syndrome

Mueller-Weiss osteonecrosis of the tarsal bone · Brailsford disease

ORPHA:566943

Muenke syndrome

ORPHA:53271

Muir-Torre syndrome

Multiple keratoacanthoma, Muir-Torre type

ORPHA:587

Mulibrey nanism

Muscle-liver-brain-eye nanism · MUL

ORPHA:2576

Müllerian aplasia

Aplasia of the Müllerian ducts · Müllerian duct failure

ORPHA:73217

Müllerian aplasia and hyperandrogenism

Müllerian duct failure and hyperandrogenism · WNT4 deficiency

ORPHA:247768

Müllerian derivatives-lymphangiectasia-polydactyly syndrome

Urioste syndrome

ORPHA:1655

Müllerian duct anomalies-limb anomalies syndrome

ORPHA:2491

Multicentric carpo-tarsal osteolysis with or without nephropathy

Idiopathic multicentric osteolysis with or without nephropathy

ORPHA:2774

Multicentric osteolysis-nodulosis-arthropathy spectrum

MONA spectrum

ORPHA:371428

Multicentric reticulohistiocytosis

Lipoid dermatoarthritis · Giant cell histiocytomatosis

ORPHA:139436

Multicystic dysplastic kidney

MCDK · Multicystic renal dysplasia

ORPHA:1851

Multifocal atrial tachycardia

Chaotic atrial tachycardia · MAT

ORPHA:3282

Multifocal infantile hemangioma with extracutenous involvement

Diffuse neonatal hemangiomatosis

ORPHA:2123

Multifocal lymphangioendotheliomatosis-thrombocytopenia syndrome

MLT · Cutaneovisceral angiomatosis-thrombocytopenia syndrome

ORPHA:464321

Multifocal motor neuropathy

MMN · MMNCB

ORPHA:641

Multifocal pattern dystrophy simulating fundus flavimaculatus

Multifocal pattern dystrophy simulating Stargardt disease

ORPHA:99003

Multifocal tuberculosis

ORPHA:645854

Multilocular cystic renal neoplasm of low malignant potential

Multilocular cystic renal cell adenocarcinoma · Multilocular cystic renal cell carcinoma

ORPHA:319287

Multiloculated renal cyst

Multilocular cyst of the kidney · Multilocular renal cyst

ORPHA:97366

Multiminicore myopathy

MmD · Multiminicore disease

ORPHA:598

Multinodular goiter-cystic kidney-polydactyly syndrome

Daneman-Davy-Mancer syndrome · Thyroid-renal-digital anomalies

ORPHA:2091

Multinucleated neurons-anhydramnios-renal dysplasia-cerebellar hypoplasia-hydranencephaly syndrome

MARCH syndrome

ORPHA:500135

Multiple acyl-CoA dehydrogenase deficiency

Glutaric acidemia type 2 · Glutaric aciduria type 2

ORPHA:26791

Multiple acyl-CoA dehydrogenase deficiency, mild type

MAD deficiency, mild type · MADD, mild type

ORPHA:394532

Multiple acyl-CoA dehydrogenase deficiency, severe neonatal type

MAD deficiency, severe neonatal type · Glutaric aciduria type 2, severe neonatal type

ORPHA:394529

Multiple benign circumferential skin creases on limbs

CCSF · Congenital circumferential skin folds

ORPHA:2505

Multiple congenital anomalies-hypotonia-seizures syndrome

Congenital disorder of glycosylation due to PIGN deficiency · PIGN-CDG

ORPHA:280633

Multiple congenital anomalies-hypotonia-seizures syndrome type 2

MCAHS type 2

ORPHA:300496

Multiple congenital anomalies-neurodevelopmental delay-ocular abnormalities syndrome

PRR12-related neuroocular syndrome

ORPHA:659904

Multiple congenital anomalies/dysmorphic syndrome

ORPHA:68341

Multiple congenital anomalies/dysmorphic syndrome without intellectual disability

MCA without intellectual disability · Multiple congenital anomalies without intellectual disability with or without dysmorphism

ORPHA:102285

Multiple congenital anomalies/dysmorphic syndrome-intellectual disability

MCA/MR · Multiple congenital anomalies-intellectual disability with or without dysmorphism

ORPHA:102283

Multiple endocrine neoplasia

MEN

ORPHA:276161

Multiple endocrine neoplasia type 1

MEN1 · Wermer syndrome

ORPHA:652

Multiple endocrine neoplasia type 2

MEN2

ORPHA:653

Multiple endocrine neoplasia type 2A

MEN2A · PTC syndrome

ORPHA:247698

Multiple endocrine neoplasia type 2B

MEN2B · Multiple endocrine neoplasia type 3

ORPHA:247709