Unusual histological patterns and hyaline ring granulomas in a unicystic ameloblastoma Posted on March 4, 2019July 26, 2022 by admin CASE REPORT Hippokratia 2014, 18, 1: 83-85 Ponce JB, Lima HG, Rodrigues MT, Souza FG, Lara VS Department of Stomatology, Bauru School of Dentistry, University of São Paulo, 2São Lucas School, Porto Velho, Rôndonia, Brazil