title: Patellar metastasis from lung adenocarcinoma revealed by FDG PET/CT.
abstract: We report a case of a 57-year-old woman with lung adenocarcinoma, who presented with right knee pain, swelling, and erythema. The initial [18F]-2-fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) scan performed for staging purposes showed a right patellar metastasis, subsequently confirmed by pathology. After administration of systemic chemotherapy supplemented by local radiation therapy to the right patella, a follow-up FDG PET/CT scan revealed a grossly stable right patellar lesion. The patient underwent right patellectomy with reconstruction of the extensor mechanism. A subsequent FDG PET/CT scan showed postoperative changes, with no evidence of residual malignancy in the right knee region.
authors.affiliation: Department of Radiology, The University of Arizona Medical Center, Tucson, AZ, USA.
authors.forename: Ion
authors.initials: I
authors.lastname: Codreanu
authors.forename: Hongming
authors.initials: H
authors.lastname: Zhuang
authors.forename: Abass
authors.initials: A
authors.lastname: Alavi
authors.forename: Drew A
authors.initials: DA
authors.lastname: Torigian
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D000077192:Adenocarcinoma of Lung; D001859:Bone Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary*; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology*; D008875:Middle Aged; D064847:Multimodal Imaging; D010329:Patella / Q000000981:diagnostic imaging*; D049268:Positron-Emission Tomography; D014057:Tomography, X-Ray Computed
chemical_list: D019788:Fluorodeoxyglucose F18