title: Gastrointestinal stromal tumor of the rectum treated with neoadjuvant Imatinib followed by transanal endoscopic microsurgery.
authors: Clinic Hospital, School of Medicine, University of São Paulo, São Paulo, Brazil.
authors: Caio Sergio Rizkallah
authors: CS
authors: Nahas
authors: Clinic Hospital, School of Medicine, University of São Paulo, São Paulo, Brazil.
authors: Sergio Carlos
authors: SC
authors: Nahas
authors: Clinic Hospital, School of Medicine, University of São Paulo, São Paulo, Brazil.
authors: Carlos Frederico Sparapan
authors: CF
authors: Marques
authors: Clinic Hospital, School of Medicine, University of São Paulo, São Paulo, Brazil.
authors: Rafael
authors: R
authors: Schmerling
authors: Clinic Hospital, School of Medicine, University of São Paulo, São Paulo, Brazil.
authors: Leonardo Alfonso
authors: LA
authors: Bustamante-Lopez
authors: Clinic Hospital, School of Medicine, University of São Paulo, São Paulo, Brazil.
authors: Ulysses
authors: U
authors: Ribeiro
authors: Clinic Hospital, School of Medicine, University of São Paulo, São Paulo, Brazil.
authors: Ivan
authors: I
authors: Cecconello
mesh_terms: D000970:Antineoplastic Agents / Q000627:therapeutic use*; D005260:Female; D046152:Gastrointestinal Stromal Tumors / Q000628:therapy*; D006801:Humans; D000068877:Imatinib Mesylate / Q000627:therapeutic use*; D008875:Middle Aged; D020360:Neoadjuvant Therapy; D012004:Rectal Neoplasms / Q000628:therapy*; D000067369:Transanal Endoscopic Microsurgery
chemical_list: D000970:Antineoplastic Agents; D000068877:Imatinib Mesylate