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Familial mondini dysplasia
Author(s) -
Griffith Andrew J.,
Telian Steven A.,
Downs Catherine,
Gorski Jerome L.,
Gebarski Stephen S.,
Lalwani Anil K.,
Sheldon Susan
Publication year - 1998
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1097/00005537-199809000-00021
Subject(s) - proband , genetic counseling , genetics , hearing loss , offspring , medicine , inheritance (genetic algorithm) , genetic analysis , biology , gene , audiology , mutation , pregnancy
Objectives/Hypothesis : To determine the mode of inheritance of familial nonsyndromic Mondini dysplasia. Study Design : Correlative clinical genetic analysis of a single kindred. Methods : Clinical history, physical examination, audiologic analysis, computed tomography of the temporal bones, and cytogenetic analysis. Results : The male proband, three affected sisters, and an affected brother are offspring of unaffected parents. The mother and an unaffected brother have audiologic findings suggestive of heterozygous carrier status for a recessive hearing loss gene. Conclusions : Pedigree analysis indicates autosomal recessive inheritance in this family. The observed inheritance and clinical, audiologic, and radiologic findings are different from those previously described for another family with nonsyndromic Mondini dysplasia. 1 The phenotype in this study family therefore represents a distinct subtype, indicating clinical and genetic heterogeneity of this disorder. This information should facilitate future molecular linkage analyses and genetic counselling of patients with inner ear malformations. Key Words : Mondini, sensorineural, hearing loss, familial, inner ear.