title: [Polycystic hydatidosis: casual finding of calcified hydatid cyst simulating mesenteric neoplasm].
abstract: A case of abdominal hydatidosis, without hepatic involvement, in a patient from the State of Acre is reported. The hydatid, already in degeneration and partially calcified, was discovered incidentally by a radiologic examination of the vertebral column, carried out for evaluating the state of an intervertebral disk prolapse. Although the images suggested a mesenteric tumor, attached to the intestinal wall, the finding of rostellar hooklets in the dense contents of the cyst, after surgical removal, revealed the parasitic nature of the lesion.
authors.affiliation: Centro de Anatomia Patológica, Hospital Universitário de Brasília, Brasília, DF, Brasil.
authors.forename: Mário A P
authors.initials: MA
authors.lastname: Moraes
authors.forename: Maria de Nazareth M
authors.initials: Mde N
authors.lastname: Sobreira
authors.forename: Plínio
authors.initials: P
authors.lastname: Medeiros Filho
authors.forename: Alexandre Cavalca
authors.initials: AC
authors.lastname: Tavares
authors.forename: Maria Iolanda
authors.initials: MI
authors.lastname: Gomes
mesh_terms: D000328:Adult; D000818:Animals; D002114:Calcinosis / Q000469:parasitology / Q000473:pathology; D003937:Diagnosis, Differential; D004443:Echinococcosis / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D004446:Echinococcus / Q000145:classification / Q000302:isolation & purification; D005260:Female; D006801:Humans; D008643:Mesentery / Q000469:parasitology*; D010534:Peritoneal Neoplasms / Q000175:diagnosis*