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

Lethal polymalformative syndrome, Boissel type

ORPHA:210144

Lethal pontocerebellar hypoplasia-hypotonia-respiratory insufficiency syndrome

Fatal pontocerebellar hypoplasia-hypotonia-respiratory insufficiency syndrome · Fatal pontocerebellar hypoplasia-hypotonia-respiratory distress syndrome

ORPHA:615954

Lethal pontocerebellar hypoplasia-hypotonia-respiratory insufficiency syndrome due to a point mutation

ORPHA:615983

Lethal pontocerebellar hypoplasia-hypotonia-respiratory insufficiency syndrome due to biallelic deletions in the ATAD3 gene cluster

Lethal 1p36.33 deletion syndrome

ORPHA:615986

Lethal recessive chondrodysplasia

Maroteaux-Stanescu-Cousin syndrome

ORPHA:1423

Lethal short-limb dwarfism, McAlister-Crane type

McAlister-Crane syndrome

ORPHA:2640

Letrozole toxicity

ORPHA:529831

Leukocyte adhesion deficiency

LAD

ORPHA:2968

Leukocyte adhesion deficiency type I

LAD-I

ORPHA:99842

Leukocyte adhesion deficiency type II

CDG syndrome type IIc · CDG-IIc

ORPHA:99843

Leukocyte adhesion deficiency type III

LAD-1 variant · LAD-III

ORPHA:99844

Leukodystrophy

ORPHA:68356

Leukoencephalopathy with bilateral anterior temporal lobe cysts

ORPHA:139444

Leukoencephalopathy with brain stem and spinal cord involvement-high lactate syndrome

LBSL · Leukoencephalopathy with brain stem and spinal cord involvement-lactate elevation syndrome

ORPHA:137898

Leukoencephalopathy with calcifications and cysts

Labrune syndrome · LCC

ORPHA:542310

Leukoencephalopathy with mild cerebellar ataxia and white matter edema

ORPHA:363540

Leukoencephalopathy-dystonia-motor neuropathy syndrome

ORPHA:163684

Leukoencephalopathy-palmoplantar keratoderma syndrome

ORPHA:2386

Leukoencephalopathy-spondyloepimetaphyseal dysplasia syndrome

Leukoencephalopathy-metaphyseal chondrodysplasia syndrome · H-SMD

ORPHA:83629

Leukoencephalopathy-thalamus and brainstem anomalies-high lactate syndrome

COXPD12 · LTBL

ORPHA:314051

Leukomelanoderma-infantilism-intellectual disability-hypodontia-hypotrichosis syndrome

Berlin syndrome · Ectodermal dysplasia, Berlin type

ORPHA:1816

Leukonychia totalis

ORPHA:2387

Leukonychia totalis-acanthosis-nigricans-like lesions-abnormal hair syndrome

ORPHA:210133

Levocardia

Isolated levocardia · Levocardia with situs inversus

ORPHA:95854

Lewis-Pashayan syndrome

Cleft lip/palate-ectrodactyly syndrome

ORPHA:2389

Lewis-Sumner syndrome

MADSAM · Multifocal acquired demyelinating sensory and motor neuropathy

ORPHA:48162

Leydig cell hypoplasia

46,XY DSD due to LH resistance or LHB deficiency · 46,XY DSD due to luteinizing hormone resistance or luteinizing hormone beta subunit deficiency

ORPHA:755

Leydig cell hypoplasia due to complete LH resistance

46,XY DSD due to complete LH receptor inactivation · 46,XY DSD due to complete LH resistance

ORPHA:96265

Leydig cell hypoplasia due to LHB deficiency

46,XY DSD due to LHB deficiency · 46,XY DSD due to luteinizing hormone subunit beta deficiency

ORPHA:325448

Leydig cell hypoplasia due to partial LH resistance

46,XY DSD due to partial LH receptor inactivation · 46,XY DSD due to partial LH resistance

ORPHA:96266

Lhermitte-Duclos disease

Dysplastic gangliocytoma of the cerebellum · LDD

ORPHA:65285

Lichen amyloidosis

Amyloid lichen · Lichen amyloidosus

ORPHA:49804

Lichen myxedematosus

ORPHA:402007

Lichen planopilaris

Follicular lichen planus · LPP

ORPHA:525

Lichen planus pemphigoides

LP pemphigoides

ORPHA:254478

Lichen planus pigmentosus

LP pigmentosa · LP pigmentosus

ORPHA:254463

Lichtenstein syndrome

ORPHA:2390

Liddle syndrome

Pseudoaldosteronism

ORPHA:526

LIG4 syndrome

DNA ligase IV deficiency · Ligase 4 syndrome

ORPHA:99812

Light and heavy chain deposition disease

LHCDD

ORPHA:93557

Light chain deposition disease

LCDD

ORPHA:93558

Ligneous conjunctivitis

Conjunctivitis lignosa

ORPHA:97231

Limb body wall complex

LBWC syndrome · Body stalk anomaly

ORPHA:2369

Limb-girdle muscular dystrophy

LGMD

ORPHA:263

Limb-girdle muscular dystrophy due to POMK deficiency

LGMD due to POMK deficiency

ORPHA:445110

Limb-mammary syndrome

LMS

ORPHA:69085

Limbal stem cell deficiency

ORPHA:171673

Limited cutaneous systemic sclerosis

Limited cutaneous systemic scleroderma · Progressive systemic sclerosis

ORPHA:220402