title: A rare benign renal tumour presenting as polycythaemia in a teenage girl.
abstract: We present the case of a 15-year-old girl who presented with polycythemia. CT abdomen revealed an enhancing mass in the upper pole of her left kidney with features suggestive of renal cell carcinoma. She underwent a laparoscopic radical nephrectomy. Histology demonstrated a well circumscribed, focally encapsulated, round blue cell tumour showing areas of microcalcifications and numerous psammoma bodies. Imunostaining showed diffuse positive staining for CD 57. This was consistent with a diagnosis of metanephric adenoma a rare benign epithelial renal tumour.
authors.affiliation: Department of Urology, Mater Misericordiae University Hospital, Eccles St, Dublin 7.
authors.forename: S
authors.initials: S
authors.lastname: Geoghegan
authors.forename: J M
authors.initials: JM
authors.lastname: Fitzpatrick
authors.forename: B
authors.initials: B
authors.lastname: McGuire
authors.forename: K J
authors.initials: KJ
authors.lastname: O'Malley
authors.forename: C
authors.initials: C
authors.lastname: Shaw
authors.forename: A
authors.initials: A
authors.lastname: Fabre
mesh_terms: D000236:Adenoma / Q000150:complications* / Q000000981:diagnostic imaging; D000293:Adolescent; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000150:complications* / Q000000981:diagnostic imaging; D011086:Polycythemia / Q000209:etiology*; D014057:Tomography, X-Ray Computed