title: Two cases of primary pulmonary osteosarcoma.
abstract: Two cases of primary pulmonary osteosarcoma are presented. In both cases, chest computed tomography revealed a calcified pulmonary mass and technetium-99m methylene diphosphonate bone scintigraphy showed intense uptake in the pulmonary mass. Primary pulmonary osteosarcoma was suspected on the basis of these radiographic findings. Microscopic examination of tumor specimens obtained by needle biopsy revealed histologic features of osteosarcoma, and this diagnosis was confirmed by postmortem examination of a second specimen in each case. Radiographic and histopathological findings enabled us to diagnose primary pulmonary osteosarcoma, which is one of the rarest types of cancer.
authors: Second Department of Internal Medicine, Ehime University School of Medicine, Onsengun.
authors: Toru
authors: T
authors: Kadowaki
authors: Hironobu
authors: H
authors: Hamada
authors: Akihito
authors: A
authors: Yokoyama
authors: Hitoshi
authors: H
authors: Katayama
authors: Masahiro
authors: M
authors: Abe
authors: Kazutaka
authors: K
authors: Nishimura
authors: Noriyuki
authors: N
authors: Tomiyama
authors: Katsumi
authors: K
authors: Kito
authors: Tatsuhiko
authors: T
authors: Miyazaki
authors: Jitsuo
authors: J
authors: Higaki
mesh_terms: D000368:Aged; D001707:Biopsy, Needle; D003937:Diagnosis, Differential; D017809:Fatal Outcome; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D008297:Male; D012516:Osteosarcoma / Q000000981:diagnostic imaging / Q000473:pathology*; D013902:Radiography, Thoracic; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D013669:Technetium Tc 99m Medronate; D014057:Tomography, X-Ray Computed
chemical_list: D019275:Radiopharmaceuticals; D013669:Technetium Tc 99m Medronate