title: Intranodal Palisaded Myofibroblastoma Masquerading as N2 Non-Small Cell Lung Carcinoma.
abstract: Intranodal palisaded myofibroblastoma is a rare and benign tumor that usually presents in the inguinal region. We report the case of a 68-year-old woman with a right paratracheal mass and right upper lobe non-small cell lung carcinoma initially staged as T1b N2 M0. After mediastinal staging, the right paratracheal mass was found to be an intranodal palisaded myofibroblastoma, which had caused erroneous upstaging of the lung carcinoma to N2 disease. This had the potential of leading to suboptimal treatment of the primary lung carcinoma if formal mediastinal staging had not been performed. To the best of our knowledge, this is the first report in the English literature of an intranodal palisaded myofibroblastoma occurring concurrently with lung cancer. This case highlights the importance of mediastinal staging in lung cancer. Mediastinoscopy remains the gold standard.
authors.affiliation: Department of Cardiothoracic Surgery, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom. Electronic address: ivan.yim@nhs.net.
authors.forename: Ivan H W
authors.initials: IH
authors.lastname: Yim
authors.affiliation: Department of Cardiothoracic Surgery, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom.
authors.forename: Malcolm B
authors.initials: MB
authors.lastname: Will
authors.affiliation: Department of Pathology, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom.
authors.forename: Catharine
authors.initials: C
authors.lastname: Dhaliwal
authors.affiliation: Department of Pathology, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom.
authors.forename: Donald M
authors.initials: DM
authors.lastname: Salter
authors.affiliation: Department of Cardiothoracic Surgery, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom.
authors.forename: William S
authors.initials: WS
authors.lastname: Walker
mesh_terms: D000368:Aged; D002289:Carcinoma, Non-Small-Cell Lung / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology*; D008479:Mediastinal Neoplasms / Q000473:pathology* / Q000601:surgery; D008481:Mediastinoscopy; D009367:Neoplasm Staging; D009379:Neoplasms, Muscle Tissue / Q000473:pathology* / Q000601:surgery; D049268:Positron-Emission Tomography