title: Case 237: Renal Cell Carcinoma with Osseous Metaplasia.
abstract: History A 47-year-old man presented with palpitations and decreased exercise tolerance. A peripheral blood smear revealed anemia, thrombocytopenia, and blast cells, and a diagnosis of acute myeloid leukemia was made. Immunohistochemistry revealed positivity for cluster of differentiation (or CD) markers, which have been reported to be associated with an increased risk of extramedullary leukemic involvement. Thus, contrast material-enhanced computed tomography (CT) of the thorax, abdomen, and pelvis was requested to enable exclusion of any extramedullary extension of leukemia. Unenhanced and contrast-enhanced nephrographic phase CT was performed. Follow-up CT 3 months later showed minimal interval change in the lesion (images not shown).
authors.affiliation: From the Departments of Radiology (B.M.H.L., S.Y.J.K., W.K.K., T.F.L., J.L.S.K.) and Clinical Pathology (M.W.L., Y.H.L.), Pamela Youde Nethersole Eastern Hospital, 3 Lok Man Road, Chai Wan, Hong Kong.
authors.forename: Billy Ming Hei
authors.initials: BM
authors.lastname: Lai
authors.affiliation: From the Departments of Radiology (B.M.H.L., S.Y.J.K., W.K.K., T.F.L., J.L.S.K.) and Clinical Pathology (M.W.L., Y.H.L.), Pamela Youde Nethersole Eastern Hospital, 3 Lok Man Road, Chai Wan, Hong Kong.
authors.forename: Solomon Yig Joon
authors.initials: SY
authors.lastname: Ka
authors.affiliation: From the Departments of Radiology (B.M.H.L., S.Y.J.K., W.K.K., T.F.L., J.L.S.K.) and Clinical Pathology (M.W.L., Y.H.L.), Pamela Youde Nethersole Eastern Hospital, 3 Lok Man Road, Chai Wan, Hong Kong.
authors.forename: Wai Kuen
authors.initials: WK
authors.lastname: Kan
authors.affiliation: From the Departments of Radiology (B.M.H.L., S.Y.J.K., W.K.K., T.F.L., J.L.S.K.) and Clinical Pathology (M.W.L., Y.H.L.), Pamela Youde Nethersole Eastern Hospital, 3 Lok Man Road, Chai Wan, Hong Kong.
authors.forename: Man Wah
authors.initials: MW
authors.lastname: Lam
authors.affiliation: From the Departments of Radiology (B.M.H.L., S.Y.J.K., W.K.K., T.F.L., J.L.S.K.) and Clinical Pathology (M.W.L., Y.H.L.), Pamela Youde Nethersole Eastern Hospital, 3 Lok Man Road, Chai Wan, Hong Kong.
authors.forename: Tang Fei
authors.initials: TF
authors.lastname: Lee
authors.affiliation: From the Departments of Radiology (B.M.H.L., S.Y.J.K., W.K.K., T.F.L., J.L.S.K.) and Clinical Pathology (M.W.L., Y.H.L.), Pamela Youde Nethersole Eastern Hospital, 3 Lok Man Road, Chai Wan, Hong Kong.
authors.forename: Yun Hoi
authors.initials: YH
authors.lastname: Lui
authors.affiliation: From the Departments of Radiology (B.M.H.L., S.Y.J.K., W.K.K., T.F.L., J.L.S.K.) and Clinical Pathology (M.W.L., Y.H.L.), Pamela Youde Nethersole Eastern Hospital, 3 Lok Man Road, Chai Wan, Hong Kong.
authors.forename: Jennifer Lai San
authors.initials: JL
authors.lastname: Khoo
mesh_terms: D002114:Calcinosis / Q000000981:diagnostic imaging*; D002292:Carcinoma, Renal Cell / Q000000981:diagnostic imaging / Q000556:secondary* / Q000601:surgery; D003287:Contrast Media; D003937:Diagnosis, Differential; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary* / Q000601:surgery; D015470:Leukemia, Myeloid, Acute / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media