title: Management of large retroperitoneal lipoma in a 12-year-old patient.
abstract: Retroperitoneal lipomas are rare tumors. The etiology of their proliferation is uncertain. Metabolic and genetic causes have been reported. We present the case of a 12-year-old patient with a large pelvic lipoma causing dysuria and pelvic pain. Magnetic resonance imaging revealed the existence of a large retroperitoneal fat tumor. Ultrasound-guided fine needle biopsy was performed to exclude malignancy. The biopsy specimen revealed tissue consistent with a benign lipoma tumor. Exploratory laparotomy revealed a solid lipoma of the retroperitoneal space 8 x 6 cm and weighing 300 g. The patient had a good postoperative performance status. Lipomas should be considered in the differential diagnosis of a solid tumor in the retroperitoneal space.
authors.affiliation: Department of Gynaecology, Metaxa Memorial Cancer Hospital, Piraeus, Greece. panagiotis_pp@yahoo.com
authors.forename: P
authors.initials: P
authors.lastname: Peitsidis
authors.forename: A
authors.initials: A
authors.lastname: Peitsidou
authors.forename: V
authors.initials: V
authors.lastname: Tsekoura
authors.forename: S
authors.initials: S
authors.lastname: Zervoudis
authors.forename: T
authors.initials: T
authors.lastname: Akrivos
mesh_terms: D002648:Child; D005260:Female; D006801:Humans; D008067:Lipoma / Q000175:diagnosis / Q000601:surgery; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis / Q000601:surgery