Generalized junctional epidermolysis bullosa, non-Herlitz type

General Information (adopted from Orphanet):

Synonyms, Signs: EPIDERMOLYSIS BULLOSA JUNCTIONALIS, SEVERE NONLETHAL
GABEB EPIDERMOLYSIS BULLOSA, JUNCTIONAL, LOCALISATA VARIANT, INCLUDED
EPIDERMOLYSIS BULLOSA JUNCTIONALIS, NON-HERLITZ TYPE
JUNCTIONAL EPIDERMOLYSIS BULLOSA INVERSA, INCLUDED
EPIDERMOLYSIS BULLOSA JUNCTIONALIS, DISENTIS TYPE
EPIDERMOLYSIS BULLOSA JUNCTIONALIS, PROGRESSIVE
JEB-I, INCLUDED
EPIDERMOLYSIS BULLOSA, GENERALIZED ATROPHIC BENIGN
GABEB
Junctional epidermolysis bullosa, Disentis type
JEB-nH gen
Generalized atrophic benign epidermolysis bullosa
Junctional epidermolysis bullosa generalisata mitis
Number of Symptoms 22
OrphanetNr: 79402
OMIM Id: 226650
ICD-10: Q81.8
UMLs:
MeSH:
MedDRA:
Snomed:

Prevalence, inheritance and age of onset:

Prevalence: No data available.
Inheritance: Autosomal recessive
[Orphanet]
Age of onset: Neonatal
Infancy
[Orphanet]

Disease classification (adopted from Orphanet):

Parent Diseases: Junctional epidermolysis bullosa, non-Herlitz type
 -Rare developmental defect during embryogenesis
 -Rare genetic disease
 -Rare odontologic disease
 -Rare skin disease

Symptom Information: Sort by abundance 

1
(HPO:0000164) Abnormality of the teeth Occasional [Orphanet] 291 / 7739
2
(HPO:0000670) Carious teeth 145 / 7739
3
(HPO:0000668) Hypodontia 81 / 7739
4
(HPO:0200097) Oral mucosal blisters 7 / 7739
5
(HPO:0006089) Palmar hyperhidrosis 5 / 7739
6
(HPO:0001808) Fragile nails 21 / 7739
7
(HPO:0007556) Plantar hyperkeratosis 8 / 7739
8
(HPO:0008388) Abnormality of the toenails Frequent [Orphanet] 28 / 7739
9
(HPO:0200037) Skin vesicle Very frequent [Orphanet] 102 / 7739
10
(HPO:0001231) Abnormality of the fingernails Frequent [Orphanet] 116 / 7739
11
(HPO:0001597) Abnormality of the nail Very frequent [Orphanet] 115 / 7739
12
(HPO:0008404) Nail dystrophy 89 / 7739
13
(OMIM) Subepidermal blistering 4 / 7739
14
(OMIM) Junctional blister formation 4 / 7739
15
(OMIM) Widened lamina lucida 4 / 7739
16
(OMIM) Enamel pitting 6 / 7739
17
(OMIM) Loss of superficial elastic fibers 4 / 7739
18
(OMIM) Non-scarring skin blistering (hands, feet, elbow, knee - onset in adolescence) 4 / 7739
19
(OMIM) Mild finger contractures 4 / 7739
20
(OMIM) Normal hemidesmosomes 4 / 7739
21
(OMIM) Loss of dermal papillae 4 / 7739
22
(OMIM) Absent dermal ridges 4 / 7739

Associated genes:

ClinVar (via SNiPA)

Gene symbol Variation Clinical significance Reference

Additional Information:

Clinical Description OMIM Hashimoto et al. (1976) observed this disorder in 3 offspring of a first-cousin marriage and named for Disentis, the place of birth of the patients. The proband was a 38-year-old man with extensive blistering. He also had 2 ...
Genotype-Phenotype Correlations OMIM Nakano et al. (2002) studied the mutational differences between the Herlitz and non-Herlitz forms of junctional EB. They examined a cohort of 27 families, 15 with Herlitz and 12 with non-Herlitz junctional EB, for mutations in the candidate ...
Molecular genetics OMIM - Mutations in the COL17A1 Gene

In a 14-year-old male with typical clinical features of this disorder, McGrath et al. (1995) identified compound heterozygosity for nonsense mutations in the COL17A1 gene (113811.0001 and 113811.0002). The unrelated ...