S1661 Diagnostic Yield of Endoscopic Screening for Identification of Signet Ring Cell in Carriers of a Pathogenic Variant in CDH1. (October 2022) - O'Malley, Margaret M.; Chatterjee, Arjun; LaGuardia, Lisa; Milicia, Susan; McGee, Sarah; Sommovilla, Joshua; Smith, Nicholas; Liska, David; Macaron, Carole; Walsh, Matthew; Burke, Carol A.