2022
Segmental basaloid follicular hamartomas derive from a post‐zygotic SMO p.L412F pathogenic variant and express hair follicle development‐related proteins in a pattern that distinguish them from basal cell carcinomas
Atzmony L, Ugwu N, Bercovitch LG, Robinson‐Bostom L, Ko CJ, Myung P, Choate KA. Segmental basaloid follicular hamartomas derive from a post‐zygotic SMO p.L412F pathogenic variant and express hair follicle development‐related proteins in a pattern that distinguish them from basal cell carcinomas. American Journal Of Medical Genetics Part A 2022, 188: 3525-3530. PMID: 35972041, PMCID: PMC9669121, DOI: 10.1002/ajmg.a.62951.Peer-Reviewed Original ResearchConceptsBasal cell carcinomaCell carcinomaFollicular hamartomaProliferation indexBasaloid skin tumorsSporadic basal cell carcinomasBasaloid follicular hamartomaKi-67 expressionLow proliferation indexCentral nervous systemWhole-exome sequencingSystemic involvementExpression of hedgehogMultiple lesionsSkin tumorsWnt/beta-catenin pathwayBasaloid lesionsNervous systemVariable involvementPathogenic variantsSegmental distributionPost-zygotic mutational eventSOX-9 expressionNormal tissuesExome sequencing
2019
Phenotypic expansion of POFUT1 loss of function mutations in a disorder featuring segmental dyspigmentation with eczematous and folliculo‐centric lesions
Atzmony L, Zaki TD, Antaya RJ, Choate KA. Phenotypic expansion of POFUT1 loss of function mutations in a disorder featuring segmental dyspigmentation with eczematous and folliculo‐centric lesions. American Journal Of Medical Genetics Part A 2019, 179: 2469-2473. PMID: 31566882, PMCID: PMC7914397, DOI: 10.1002/ajmg.a.61362.Peer-Reviewed Original ResearchConceptsDowling-Degos diseasePhenotypic expansionMosaic disordersFunction mutationsDistinct clinical presentationsSomatic copy-neutral lossGermline heterozygous mutationsWhole-exome sequencingClinical presentationEczematous plaquesFollicular papulesAffected skinSkin diseasesBlaschko's linesCopy-neutral lossHeterozygous mutationsReticulated hyperpigmentationExome sequencingNormal keratinocytesPostzygotic mutationDisordersExpression levelsSomatic mutationsLesionsKeratinocytes