title: Calcified retroperitoneal fibroma.
abstract: A case of 31-year-old male with a retroperitoneal tumor is described. Abdominal ultrasound revealed a left para-aortic calcific mass, adjacent to the left lobe of the liver and to the upper pole of the left kidney. A CT-scan of the abdomen showed the mass to originate from the left adrenal gland. At operation, a large, retroperitoneal mass, adherent to the left kidney and the spleen, but not infiltrating, was excised. Histologically the tumor was diagnosed as a calcified osteo-producing fibroma. Benign retroperitoneal tumors represent about 25% of all retroperitoneal neoplasm. This reported case represents a retroperitoneal tumor of slow growth and benign clinical course whose characteristic consists of the heavy calcifications which are normally absent in a fibroma type mass.
authors.affiliation: Fourth Surgical Service, University La Sapienza, Rome, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Illuminati
authors.forename: A
authors.initials: A
authors.lastname: Bertagni
authors.forename: G
authors.initials: G
authors.lastname: Montesano
authors.forename: G
authors.initials: G
authors.lastname: Soda
authors.forename: A
authors.initials: A
authors.lastname: Baiocchini
authors.forename: M
authors.initials: M
authors.lastname: Melis
authors.forename: F
authors.initials: F
authors.lastname: Vietri
mesh_terms: D000328:Adult; D002114:Calcinosis / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D005350:Fibroma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D014463:Ultrasonography