title: Pulmonary infarction associated with bronchogenic carcinoma.
abstract: Computed tomography findings of pathologically proven pulmonary infarction associated with bronchogenic carcinoma are reported for two patients. In one case, the infarction was demonstrated as a well-defined pleura-based large nodule in the peripheral portion of the same lobe of the tumor. The nodule had a smooth, convex border and a linear strand from the apex of the lesion toward the hilum. The obstruction of the subsegmental pulmonary artery due to tumor invasion was considered the cause of pulmonary infarction. In the second case, the infarction was demonstrated as a rapidly appeared, pleura-based consolidation in the same lobe of the tumor with a blurred border. Obstruction of the pulmonary vein by a tumor might have played an important role in the development of the pulmonary infarction in association with a large pulmonary artery obstruction. We conclude that pulmonary infarction should be considered as a differential diagnosis when peripheral pulmonary nodules or masses are located in the same lobe as the primary cancer.
authors.affiliation: Department of Radiology, Shiga University of Medical Science, Seta-Tsukinowa, Otsu, 520-2192, Japan. masashi@belle.shiga-med.ac.jp
authors.forename: Masashi
authors.initials: M
authors.lastname: Takahashi
authors.forename: Yoko
authors.initials: Y
authors.lastname: Murakami
authors.forename: Norihisa
authors.initials: N
authors.lastname: Nitta
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Murata
authors.forename: Noriaki
authors.initials: N
authors.lastname: Tezuka
authors.forename: Shozo
authors.initials: S
authors.lastname: Fujino
authors.forename: Hidetoshi
authors.initials: H
authors.lastname: Okabe
mesh_terms: D000230:Adenocarcinoma / Q000150:complications / Q000175:diagnosis* / Q000628:therapy; D002283:Carcinoma, Bronchogenic / Q000150:complications / Q000175:diagnosis* / Q000628:therapy; D018288:Carcinoma, Small Cell / Q000150:complications / Q000175:diagnosis* / Q000628:therapy; D003287:Contrast Media / Q000008:administration & dosage; D003937:Diagnosis, Differential; D006801:Humans; D033162:Incidental Findings; D008168:Lung / Q000000981:diagnostic imaging / Q000601:surgery; D008175:Lung Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D054060:Pulmonary Infarction / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery; D011856:Radiographic Image Enhancement / Q000379:methods; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media