Abstract:
:Cerebello-oculo-renal syndromes (CORSs) and Joubert syndrome (JS) are clinically and genetically heterogeneous autosomal recessive syndromes that share a complex neuroradiological malformation resembling a molar tooth on brain axial images, a condition referred to as "molar tooth on imaging" (MTI) or the "molar tooth sign." The current literature on these syndromes is complex, with overlapping and incomplete phenotypes that complicate the selection of clinically homogeneous cases for genetic purposes. So far, only one locus (JBTS1 on 9q34) has been mapped, in two families with JS. Here, we describe a large consanguineous family with JS and nephronophthisis, representing a novel cerebello-renal phenotype. We have mapped this condition to the pericentromeric region of chromosome 11 and have named the locus "CORS2." The acronym "CORS" is proposed for all loci associated with JS, CORSs, and related phenotypes sharing the MTI, because this neuroradiological sign seems to be the unifying feature of these clinically heterogeneous syndromes.
journal_name
Am J Hum Genetjournal_title
American journal of human geneticsauthors
Valente EM,Salpietro DC,Brancati F,Bertini E,Galluccio T,Tortorella G,Briuglia S,Dallapiccola Bdoi
10.1086/378241subject
Has Abstractpub_date
2003-09-01 00:00:00pages
663-70issue
3eissn
0002-9297issn
1537-6605pii
S0002-9297(07)62030-8journal_volume
73pub_type
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