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Most Common: Hearing Loss (D034381), Deafness (D003638), Sensorineural HL (D006319), Waardenburg Syndrome, Usher Syndromes
Term ID:10900
Name:Telangiectasia, Hereditary Hemorrhagic
Definition:An autosomal dominant vascular anomaly characterized by telangiectases of the skin and mucous membranes and by recurrent gastrointestinal bleeding. This disorder is caused by mutations of a gene (on chromosome 9q3) which encodes endoglin, a membrane glycoprotein that binds TRANSFORMING GROWTH FACTOR BETA.
Alternative IDs:OMIM:187300
ParentIDs:MESH:D013684|MESH:D020141|MESH:D054079
TreeNumbers:C14.907.454.900 |C14.907.823.780 |C15.378.463.515.900 |C16.131.240.850.968
Synonyms:Disease, Osler's |Hemorrhagic Telangiectasia, Hereditary |Hereditary Hemorrhagic Telangiectasia |HHT |HHT1, INCLUDED |ORW DISEASE TELANGIECTASIA, HEREDITARY HEMORRHAGIC, TYPE 1, INCLUDED |Osler Disease |Osler Rendu Disease |Osler-Rendu Disease |Osler Rendu Weber
Slim Mappings:Blood disease|Cardiovascular disease|Congenital abnormality
Reference: MedGen: D013683
MeSH: D013683
OMIM: 187300;

Genes: ENG;
Phenotypes
1 HP:0000006Autosomal dominant inheritance
2 HP:0001903Anemia
3 HP:0002642Arteriovenous fistulas of celiac and mesenteric vessels
4 HP:0030049Brain abscess
5 HP:0002408Cerebral arteriovenous malformation
6 HP:0001342Cerebral hemorrhage
7 HP:0001394Cirrhosis
8 HP:0001217Clubbing
9 HP:0000524Conjunctival telangiectasia
10 HP:0000961Cyanosis
11 HP:0100858Dilatation of celiac artery
12 HP:0011934Dilatation of mesenteric artery
13 HP:0002094Dyspnea
14 HP:0006107Fingerpad telangiectases
15 HP:0000471Gastrointestinal angiodysplasia
16 HP:0002629Gastrointestinal arteriovenous malformation
17 HP:0002604Gastrointestinal telangiectasia
18 HP:0002248Hematemesis
19 HP:0002573Hematochezia
20 HP:0006574Hepatic arteriovenous malformation
21 HP:0001425Heterogeneous
22 HP:0001722High-output congestive heart failure
23 HP:0002140Ischemic stroke
24 HP:0000214Lip telangiectasia
25 HP:0002249Melena
26 HP:0002076Migraine
27 HP:0001232Nail bed telangiectasia
28 HP:0000434Nasal mucosa telangiectasia
29 HP:0002707Palate telangiectasia
30 HP:0001901Polycythemia
31 HP:0006548Pulmonary arteriovenous malformation
32 HP:0001694Right-to-left shunt
33 HP:0001250Seizure
34 HP:0002390Spinal arteriovenous malformation
35 HP:0004406Spontaneous, recurrent epistaxis
36 HP:0002138Subarachnoid hemorrhage
37 HP:0000227Tongue telangiectasia
38 HP:0002326Transient ischemic attack
39 HP:0002626Venous varicosities of celiac and mesenteric vessels
Disease Causing ClinVar Variants
Variation_NameGeneIDGeneSymbolClinicalSignificancedbSNPRCVaccessionTestedInGTRPhenotypeIDsChromosomeStartStopHGVS_cHGVS_pHGVS_gOtherIDsDisease_ClinVarDisease_hgmd
NM_000118.3(ENG):c.1374A>G (p.Pro458=)2022ENGBenign34828244RCV000206022; RCV000196025; NMedGen:C0039445,OMIM:187300,ORPHA:774,SNOMED CT:21877004; MedGen:CN1693749130581049130581049NM_000118.3:c.1374A>GNP_000109.1:p.Pro458=NC_000009.11:g.130581049T>C-CN169374 not specified; C0039445 187300 Osler hemorrhagic telangiectasia syndrome
NM_000118.3(ENG):c.1282A>C (p.Asn428His)2022ENGUncertain significance-1RCV000211515; NMedGen:C0039445,OMIM:187300,ORPHA:774,SNOMED CT:218770049130581930130581930NM_000118.3:c.1282A>CNP_000109.1:p.Asn428His-C0039445 187300 Osler hemorrhagic telangiectasia syndrome
NM_000118.3(ENG):c.1238G>T (p.Gly413Val)2022ENGPathogenic121918401RCV000018154; NMedGen:C0039445,OMIM:187300,ORPHA:774,SNOMED CT:218770049130582213130582213NM_000118.3:c.1238G>TNP_000109.1:p.Gly413ValNC_000009.11:g.130582213C>AOMIM Allelic Variant:131195.0007C0039445 187300 Osler hemorrhagic telangiectasia syndrome
NM_000118.3(ENG):c.831C>G (p.Tyr277Ter)2022ENGPathogenic121918400RCV000018148; NMedGen:C0039445,OMIM:187300,ORPHA:774,SNOMED CT:218770049130587239130587239NM_000118.3:c.831C>GNP_000109.1:p.Tyr277TerNC_000009.11:g.130587239G>COMIM Allelic Variant:131195.0001C0039445 187300 Osler hemorrhagic telangiectasia syndrome
NM_000118.3(ENG):c.640_643delGGCC (p.Gly214Thrfs)2022ENGPathogenic864622666RCV000205417; NMedGen:C0039445,OMIM:187300,ORPHA:774,SNOMED CT:218770049130588020130588023NM_000118.3:c.640_643delGGCCNP_000109.1:p.Gly214ThrfsNC_000009.11:g.130588020_130588023delGGCC-C0039445 187300 Osler hemorrhagic telangiectasia syndrome
NM_000118.3(ENG):c.596G>A (p.Arg199His)2022ENGUncertain significance548424658RCV000211433; NMedGen:C0039445,OMIM:187300,ORPHA:774,SNOMED CT:218770049130588067130588067NM_000118.3:c.596G>ANP_000109.1:p.Arg199HisNC_000009.11:g.130588067C>T-C0039445 187300 Osler hemorrhagic telangiectasia syndrome
NM_000118.3(ENG):c.572G>A (p.Gly191Asp)2022ENGBenign;Likely benign41322046RCV000205223; RCV000200751; NMedGen:C0039445,OMIM:187300,ORPHA:774,SNOMED CT:21877004; MedGen:CN1693749130588091130588091NM_000118.3:c.572G>ANP_000109.1:p.Gly191AspNC_000009.11:g.130588091C>T-CN169374 not specified; C0039445 187300 Osler hemorrhagic telangiectasia syndrome
NM_000118.3(ENG):c.360C>A (p.Tyr120Ter)2022ENGPathogenic121918402RCV000018156; NMedGen:C0039445,OMIM:187300,ORPHA:774,SNOMED CT:218770049130591966130591966NM_000118.3:c.360C>ANP_000109.1:p.Tyr120TerNC_000009.11:g.130591966G>TOMIM Allelic Variant:131195.0009C0039445 187300 Osler hemorrhagic telangiectasia syndrome
NM_000118.3(ENG):c.259C>T (p.Gln87Ter)2022ENGLikely pathogenic730880096RCV000157221; NMedGen:C0039445,OMIM:187300,ORPHA:774,SNOMED CT:218770049130592067130592067NM_000118.3:c.259C>TNP_000109.1:p.Gln87TerNC_000009.11:g.130592067G>A-C0039445 187300 Osler hemorrhagic telangiectasia syndrome
NM_000118.3(ENG):c.2T>C (p.Met1Thr)2022ENGPathogenic267606783RCV000018153; NMedGen:C0039445,OMIM:187300,ORPHA:774,SNOMED CT:218770049130616633130616633NM_000118.3:c.2T>CNP_000109.1:p.Met1ThrNC_000009.11:g.130616633A>GOMIM Allelic Variant:131195.0006C0039445 187300 Osler hemorrhagic telangiectasia syndrome