Symptomatic mucous retention cysts of the maxillary sinus: case report - Gonçales, Eduardo Sanches; Gonçales, Andréia Guedes Barreto; Lima, Emanuelle da Silva; Rocha, Julierme Ferreira; Noleto, José Wilson; Hochuli-Vieira, Eduardo (Revista Sul-Brasileira de Odontologia - RSBO, 2015)