PMID- 30444160 OWN - NLM STAT- MEDLINE DCOM- 20190412 LR - 20190412 IS - 1744-5094 (Electronic) IS - 1381-6810 (Linking) VI - 39 IP - 6 DP - 2018 Dec TI - Clinical and imaging characteristics of posterior column ataxia with retinitis pigmentosa with a specific FLVCR1 mutation. PG - 735-740 LID - 10.1080/13816810.2018.1547913 [doi] AB - BACKGROUND: Posterior column ataxia retinitis pigmentosa (PCARP) with feline leukemia virus subgroup C cellular receptor 1 (FLVCR1) gene mutation is a rare disorder with significant ophthalmic features. MATERIALS AND METHODS: We conducted a retrospective case series study of patients diagnosed with PCARP and genetic testing positive for FLVCR1 mutation between 1 January 2015 and 1 October 2017 at the Children's Hospital of Pittsburgh. Clinical charts, visual fields, fundus autofluorescence, and spectral-domain optical coherence tomography (SD-OCT) were reviewed. RESULTS: Seven patients from three families were identified to have PCARP and FLVCR1 mutation. The median age at presentation was 13 years (range, 7-28 years). Common clinical exam findings were astigmatism, cataracts, and vitreous syneresis. Funduscopy on all patients revealed bull's eye maculopathy, retinal vessels attenuation, and bone spicule changes in the peripheral retina. Fundus autofluorescence showed bilateral hyperautofluorescent rings. SD-OCT demonstrated morphological changes, which differed based on age. The youngest sibling family exhibited peripheral loss, but subfoveal preservation of the outer retinal layers. These layers were lost in the oldest sibling family. Visual fields loss paralleled SD-OCT findings. CONCLUSION: There is limited published ophthalmic data on FLVCR1-related PCARP. We describe clinical and retinal imaging features in the one of the largest cohorts of affected patients in the literature. Given the availability of genetic testing for this phenotype, testing for FLVCR1 mutations should be considered in pediatric and adult patients with sensory ataxia and retinitis pigmentosa. FAU - Lee, Jennifer AU - Lee J AD - a Department of Pediatric Ophthalmology, Strabismus, and Adult Motility , Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center , Pittsburgh , Pennsylvania , USA. FAU - Scanga, Hannah L AU - Scanga HL AD - a Department of Pediatric Ophthalmology, Strabismus, and Adult Motility , Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center , Pittsburgh , Pennsylvania , USA. FAU - Dansingani, Kunal K AU - Dansingani KK AUID- ORCID: 0000-0002-7430-8601 AD - b Department of Ophthalmology , University of Pittsburgh Medical Center , Pittsburgh , Pennsylvania , USA. FAU - Taubenslag, Kenneth J AU - Taubenslag KJ AD - a Department of Pediatric Ophthalmology, Strabismus, and Adult Motility , Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center , Pittsburgh , Pennsylvania , USA. FAU - Zlotcavitch, Leonid AU - Zlotcavitch L AD - a Department of Pediatric Ophthalmology, Strabismus, and Adult Motility , Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center , Pittsburgh , Pennsylvania , USA. FAU - Chauhan, Bharesh K AU - Chauhan BK AD - a Department of Pediatric Ophthalmology, Strabismus, and Adult Motility , Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center , Pittsburgh , Pennsylvania , USA. AD - b Department of Ophthalmology , University of Pittsburgh Medical Center , Pittsburgh , Pennsylvania , USA. FAU - Sylvester, Christin L AU - Sylvester CL AD - a Department of Pediatric Ophthalmology, Strabismus, and Adult Motility , Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center , Pittsburgh , Pennsylvania , USA. FAU - Morton, D Holmes AU - Morton DH AD - c Pediatrician , Central Pennsylvania Clinic for Special Children and Adults , Belleville , Pennsylvania , USA. AD - d Department of Pediatrics , Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center , Pittsburgh , Pennsylvania , USA. FAU - Nischal, Ken K AU - Nischal KK AD - a Department of Pediatric Ophthalmology, Strabismus, and Adult Motility , Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center , Pittsburgh , Pennsylvania , USA. LA - eng PT - Journal Article DEP - 20181116 PL - England TA - Ophthalmic Genet JT - Ophthalmic genetics JID - 9436057 RN - 0 (FLVCR1 protein, human) RN - 0 (Membrane Transport Proteins) RN - 0 (Receptors, Virus) RN - Posterior column ataxia with retinitis pigmentosa SB - IM MH - Adolescent MH - Adult MH - Astigmatism/diagnosis/genetics MH - Ataxia/*diagnostic imaging/*genetics MH - Child MH - Female MH - Humans MH - Hyperopia/diagnosis/genetics MH - Male MH - Membrane Transport Proteins/*genetics MH - Molecular Biology MH - Multimodal Imaging MH - *Mutation MH - Myopia/diagnosis/genetics MH - Optical Imaging MH - Receptors, Virus/*genetics MH - Retinitis Pigmentosa/*diagnostic imaging/*genetics MH - Retrospective Studies MH - *Tomography, Optical Coherence MH - Visual Field Tests MH - Visual Fields/physiology MH - Young Adult OTO - NOTNLM OT - Retinitis pigmentosa OT - ataxia OT - genetic mutation OT - optical coherence tomography OT - visual fields EDAT- 2018/11/18 06:00 MHDA- 2019/04/13 06:00 CRDT- 2018/11/17 06:00 PHST- 2018/11/18 06:00 [pubmed] PHST- 2019/04/13 06:00 [medline] PHST- 2018/11/17 06:00 [entrez] AID - 10.1080/13816810.2018.1547913 [doi] PST - ppublish SO - Ophthalmic Genet. 2018 Dec;39(6):735-740. doi: 10.1080/13816810.2018.1547913. Epub 2018 Nov 16.