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"

200 matching diseasesClear search ×

Lambert syndrome

Branchial dysplasia-intellectual disability-inguinal hernia syndrome

ORPHA:1296

Laron syndrome

Complete growth hormone insensitivity · GH receptor deficiency

ORPHA:633

Larsen syndrome

ORPHA:503

Laryngo-onycho-cutaneous syndrome

LOGIC syndrome · Laryngeal and ocular granulation tissue in children from the Indian subcontinent syndrome

ORPHA:2407

Legius syndrome

Nonmosaic Legius syndrome · NF1-like syndrome

ORPHA:137605

Leigh syndrome

Infantile subacute necrotizing encephalopathy · Leigh disease

ORPHA:506

Lelis syndrome

Ectodermal dysplasia-acanthosis nigricans syndrome

ORPHA:140936

Lemierre syndrome

Lemierre postanginal sepsis · Postanginal sepsis secondary to orophyngeal infection

ORPHA:137839

Lesch-Nyhan syndrome

HPRT complete deficiency · HPRT deficiency grade IV

ORPHA:510

Lethal ataxia with deafness and optic atrophy

Arts syndrome · Lethal ataxia with hearing loss and optic atrophy

ORPHA:1187

Leukoencephalopathy with calcifications and cysts

Labrune syndrome · LCC

ORPHA:542310

Liddle syndrome

Pseudoaldosteronism

ORPHA:526

LIG4 syndrome

DNA ligase IV deficiency · Ligase 4 syndrome

ORPHA:99812

Limb body wall complex

LBWC syndrome · Body stalk anomaly

ORPHA:2369

LUMBAR syndrome

PELVIS syndrome · Perineal hemangioma-external genitalia malformations-lipomyelomeningocele-vesicorenal abnormalities-imperforate anus-skin tag syndrome

ORPHA:83628

Lynch syndrome

ORPHA:144

Mammary-digital-nail syndrome

MDN syndrome · Onycho-digito-mammary syndrome

ORPHA:238744

Mandibular hypoplasia-deafness-progeroid features-lipodystrophy syndrome

MDPL syndrome · MDP syndrome

ORPHA:363649

Marfan syndrome

MFS

ORPHA:558

MASS syndrome

Mitral valve-aorta-skeleton-skin syndrome

ORPHA:99715

Mayer-Rokitansky-Küster-Hauser syndrome

MRKH syndrome · Rokitansky syndrome

ORPHA:3109

Megalocornea-intellectual disability syndrome

MMR syndrome · Neuhäuser syndrome

ORPHA:2479

MEHMO syndrome

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

ORPHA:85282

Melorheostosis with osteopoikilosis

MSBD syndrome · Mixed sclerosing bone dystrophy

ORPHA:1879

MEPAN syndrome

Mitochondrial enoyl CoA reductase protein-associated neurodegeneration syndrome · Autosomal recessive childhood-onset dystonia, DYT29 type

ORPHA:508093

Michels syndrome

3MC1 syndrome · Oculopalatoskeletal syndrome

ORPHA:2506

Microcephaly-microcornea syndrome, Seemanova type

Seemanova-Lesny syndrome

ORPHA:2528

Microphthalmia with linear skin defects syndrome

MCOPS7 · MIDAS syndrome

ORPHA:2556

Microphthalmia-brain atrophy syndrome

MCOPS10 · MOBA syndrome

ORPHA:77299

MOMO syndrome

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

ORPHA:2563

Monosomy 18p syndrome

18p- syndrome · De Grouchy syndrome type 1

ORPHA:1598

Monosomy 18q syndrome

18q- syndrome · Deletion 18q

ORPHA:1600

Monosomy 9p syndrome

9p deletion syndrome · 9p- syndrome

ORPHA:261112

Morvan syndrome

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

ORPHA:83467

Multiple endocrine neoplasia type 2A

MEN2A · PTC syndrome

ORPHA:247698

Multiple synostoses syndrome

Deafness-Hermann type symphalangism syndrome · Facio-audio-symphalangism

ORPHA:3237

Muscle-eye-brain disease

MEB syndrome · Muscle-eye-brain syndrome

ORPHA:588

Myelodysplastic syndrome associated with isolated del(5q) chromosome abnormality

5q- syndrome · MDS

ORPHA:86841

N syndrome

ORPHA:2608

Naegeli-Franceschetti-Jadassohn syndrome

NFJ syndrome · Naegeli syndrome

ORPHA:69087

NAME syndrome

Nevi-atrial myxoma-myxoid neurofibromata-ephelides syndrome

ORPHA:623

Nodulosis-arthropathy-osteolysis syndrome

NAO syndrome

ORPHA:85196

Noonan syndrome

ORPHA:648

Noonan syndrome with multiple lentigines

Cardiomyopathic lentiginosis · Familial multiple lentigines syndrome

ORPHA:500

Noonan syndrome-like disorder with juvenile myelomonocytic leukemia

CBL syndrome · Noonan syndrome-like disorder with JMML

ORPHA:363972

Oculocerebrocutaneous syndrome

Delleman syndrome · Delleman-Oorthuys syndrome

ORPHA:1647

Oculocerebrorenal syndrome of Lowe

Lowe disease · Lowe oculo-cerebro-renal syndrome

ORPHA:534

Oculogastrointestinal-neurodevelopmental syndrome

OGIN Syndrome

ORPHA:611201