title: [Pulmonary Clear Cell Type Squamous Cell Carcinoma that Required Differential Diagnosis from Metastatic Ureter Cancer;Report of a Case].
abstract: A 71-year-old woman was referred to our department for a nodular lesion in the left lung. She had been followed by urology department in our hospital for 6 years since right nephrectomy for ureter cancer. Chest X-ray and computed tomography (CT) scan demonstrated a small nodular shadow in the left lower lobe. The lung tumor was removed by wedge resection, and pathologically diagnosed during the operation as a metastasis from the ureter cancer. The lung tumor consisted of clear cells similar to the ureter cancer. However, the final pathological diagnosis changed to a primary lung cancer based on the findings of stratified differentiation and cancer cell nests in the tumor. Immunohistochemical staining for ureter epithelium-related antigens confirmed the diagnosis. Although we recommended left lower completion lobectomy, the patient refused additional surgery. She is suspected to have local recurrence in the left lower lobe 18 months after the surgery.
authors.affiliation: Department of Chest Surgery, Ohta-Nishinouchi Hospital, Ohta General Hospital Foundation, Koriyama, Japan.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Oyaizu
authors.forename: Yuji
authors.initials: Y
authors.lastname: Matsumura
authors.forename: Osamu
authors.initials: O
authors.lastname: Araki
authors.forename: Morimichi
authors.initials: M
authors.lastname: Nishihira
authors.forename: Yoko
authors.initials: Y
authors.lastname: Karube
authors.forename: Norio
authors.initials: N
authors.lastname: Seki
authors.forename: Satoru
authors.initials: S
authors.lastname: Kobayashi
authors.forename: Masayuki
authors.initials: M
authors.lastname: Chida
mesh_terms: D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis / Q000601:surgery*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis / Q000601:surgery*; D011013:Pneumonectomy; D012008:Recurrence; D014057:Tomography, X-Ray Computed; D014516:Ureteral Neoplasms / Q000175:diagnosis*