hrp0086fc11.1 | Thyroid | ESPE2016

Mutations in TBL1X as a Novel Cause of Familial Central Hypothyroidism

Heinen Charlotte , Losekoot Monique , Sun Yu , Watson Peter , Fairall Louise , Joustra Sjoerd , Zwaveling-Soonawala Nitash , Oostdijk Wilma , van den Akker Erica , Santen Gijs , van Rijn Rick , Dreschler Wouter , Surovtseva Olga , Biermasz Nienke , Hennekam Raoul , Wit Jan , Schwabe John , Boelen Anita , Fliers Eric , van Trotsenburg Paul

Background: Congenital central hypothyroidism (CeH) may occur isolated, or in combination with other pituitary hormone deficiencies. Although a third causative gene for CeH was recently reported (IGSF1), the aetiology of isolated CeH has remained unexplained in most cases.Objective and hypotheses: We hypothesized that in three relatives with unexplained isolated CeH a mutation in another gene might be responsible for the phenotype.<p class="...

hrp0089p1-p179 | Growth &amp; Syndromes P1 | ESPE2018

Beckwith Wiedemann Syndrome: First International Consensus Regarding Diagnosis and Clinical Management

Brioude Frederic , Kalish Jennifer M. , Mussa Alessandro , C. Foster Alison , Bliek Jet , Ferrero Giovanni B. , Boonen Susanne E. , Baker Robert , Bertoletti Monica , Cocchi Guido , Coze Carole , Pellegrin Maurizio De , Hussain Khalid , Krajewska-Walasek Malgorzata , Kratz Christian P. , Bouc Yves Le , Maas Saskia M. , Ounap Katrin , Peruzzi Licia , Rossignol Sylvie , Russo Silvia , Shipster Caroleen , Skorka Agata , Tatton-Brown Katrina , Tenorio Jair , Tortora Chiara , Gronskov Karen , Netchine Irene , Hennekam Raoul C. , Prawitt Dirk , Tumer Zeynep , Eggermann Thomas , Mackay Deborah J. G. , Riccio Andrea , Maher Eamonn R.

Beckwith Wiedemann syndrome (BWS) is a rare overgrowth disorder characterised by macroglossia, exomphalos, lateralised overgrowth, organomegaly, hyperinsulinism, and an increased risk of embryonic tumor during early life. In about 80% of BWS cases, molecular defects are identified at the imprinted 11p15.5 region which contains the IGF2 and the CDKN1C genes (most patients show methylation defects at either imprinting control region IC1 or IC2, or paternal unip...