title: Two cases of intrapulmonary lymph node presenting as a peripheral nodular shadow: diagnostic differentiation from lung cancer.
abstract: We present two cases of intrapulmonary lymph node. The patients were a 44-year-old woman and a 71-year-old man each with a small peripheral nodule in the lung. On computed tomography (CT) scans, both nodules were spiculated. Since histological diagnosis could not be obtained by bronchoscopic examination or CT-guided needle biopsy, they underwent video-assisted thoracoscopic surgery. Histological examination of the resected material revealed that both nodules were composed of lymph node. Intrapulmonary lymph node has until recently been assigned no clinical significance; however, differential diagnosis of this lesion from lung cancers and other metastatic tumors is now clinically important.
authors.affiliation: Department of Internal Medicine, National Shikoku Cancer Center Hospital, Matsuyama, Japan. nfujimot@shikoku-cc.go.jp
authors.forename: N
authors.initials: N
authors.lastname: Fujimoto
authors.forename: Y
authors.initials: Y
authors.lastname: Segewa
authors.forename: N
authors.initials: N
authors.lastname: Takigawa
authors.forename: I
authors.initials: I
authors.lastname: Takata
authors.forename: K
authors.initials: K
authors.lastname: Hotta
authors.forename: H
authors.initials: H
authors.lastname: Mogami
authors.forename: M
authors.initials: M
authors.lastname: Nakata
authors.forename: K
authors.initials: K
authors.lastname: Mandai
authors.forename: K
authors.initials: K
authors.lastname: Eguchi
mesh_terms: D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging*; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D008198:Lymph Nodes / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed