title: Pelvic inflammatory myofibroblastic tumor mimicking a rectal cancer.
abstract: We report a case of a 50-year-old woman who presented to the emergency department with large bowel obstruction and anemia. The initial imaging study suggested an inoperable rectal tumor with involvement of surrounding structures. In this paper we discuss the diagnostic work-up of this patient with a diagnosis of pelvic/perirectal inflammatory myofibroblastic tumor (IMT). IMT is a rare tumor with intermediate malignant potential that frequently mimics clinical and imaging features of malignancy. Additionally, to the best of our knowledge, this is the first case of a pelvic IMT that regressed without surgical excision.
authors.affiliation: Gastroenterology Department, Hospital Garcia de Orta. Portugal, PORTUGAL.
authors.forename: Lídia
authors.initials: L
authors.lastname: Roque-Ramos
authors.affiliation: Hospital Garcia de Orta. Portugal.
authors.forename: António P
authors.initials: AP
authors.lastname: Matos
authors.affiliation: Hospital Garcia de Orta. Portugal.
authors.forename: Pedro
authors.initials: P
authors.lastname: Pinto-Marques
authors.affiliation: Hospital Garcia de Orta. Portugal.
authors.forename: Gabriela
authors.initials: G
authors.lastname: Machado
authors.affiliation: Hospital Garcia de Orta. Portugal.
authors.forename: Joana
authors.initials: J
authors.lastname: Nogueira
authors.affiliation: Hospital Garcia de Orta. Portugal.
authors.forename: Miguel
authors.initials: M
authors.lastname: Ramalho
mesh_terms: D000740:Anemia / Q000209:etiology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007415:Intestinal Obstruction / Q000209:etiology; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009365:Neoplasm Regression, Spontaneous; D009379:Neoplasms, Muscle Tissue / Q000175:diagnosis* / Q000000981:diagnostic imaging; D010386:Pelvic Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D012004:Rectal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging