title: Pathologic quiz case: unusual morphology in an otherwise classic renal cell carcinoma. Tumor-to-tumor metastasis: pulmonary adenocarcinoma metastatic to clear cell renal cell carcinoma.
authors.affiliation: Department of Pathology, The Methodist Hospital and Baylor College of Medicine, Houston, TX, USA. LAGranvi@mdanderson.org <LAGranvi@mdanderson.org>
authors.forename: Laura A
authors.initials: LA
authors.lastname: Granville
authors.forename: Mary L
authors.initials: ML
authors.lastname: Ostrowski
authors.forename: Luan D
authors.initials: LD
authors.lastname: Truong
authors.forename: Steven
authors.initials: S
authors.lastname: Shen
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D018262:Adenocarcinoma, Clear Cell / Q000556:secondary*; D000368:Aged; D002292:Carcinoma, Renal Cell / Q000556:secondary*; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000556:secondary*; D008175:Lung Neoplasms / Q000473:pathology*; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis*