Recurrent ranulas: What is the diagnosis? Joana Baptista de Lima; José Banquart Leitão; Carla Zilhão; Sérgio Alves;

Lipschütz ulcer as a possible SARS-COV-2 manifestation Joana Ferreira Mendes; Sérgio Alves; Marta Isabel Pinheiro; Joana Soares dos Reis;