title: Tree-in-bud pattern on thoracic CT due to pulmonary intravascular metastases from pancreatic adenocarcinoma.
abstract: We report a case of pulmonary intravascular metastases from pancreatic adenocarcinoma manifesting as tree-in-bud pattern on thoracic computed tomography. Although infectious bronchiolitis is the most common cause of tree-in-bud pattern, this case emphasizes that the differential diagnoses include pulmonary intravascular metastases, particularly in patients with extrapulmonary adenocarcinomas.
authors.affiliation: Joint Department of Medical Imaging, Thoracic Division, University Health Network and Mount Sinai Hospital, Toronto, Canada. yuenli_ng@hotmail.com
authors.forename: Yuen
authors.initials: Y
authors.lastname: Li Ng
authors.forename: David
authors.initials: D
authors.lastname: Hwang
authors.forename: Demetris
authors.initials: D
authors.lastname: Patsios
authors.forename: Gordon
authors.initials: G
authors.lastname: Weisbrod
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging / Q000556:secondary*; D001706:Biopsy; D004452:Echocardiography; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary*; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000473:pathology*; D013902:Radiography, Thoracic; D012129:Respiratory Function Tests; D014057:Tomography, X-Ray Computed / Q000379:methods