title: Findings of fluorine-18-FDG PET in extranodal origin lymphoma--in three cases of diffuse large B cell type lymphoma.
abstract: F-18 fluorodeoxyglucose (FDG) positron emission tomography (PET) is an excellent modality for non-invasive functional imaging of malignant lymphoma and is highly sensitive and specific for the detection of lymphoma lesions. Here, we report the findings of FDG-PET for three cases of diffuse large B cell type lymphoma (DLBCL) with extranodal tumors in the breast, stomach, and liver plus spleen, respectively. The whole body FDG-PET findings showed no evidence of lymph node (LN) involvement or distant metastasis. Strong FDG accumulations were observed in the only extranodal sites by whole body FDG-PET. Therefore, we could confirm that these cases were extranodal primary origins. Whole body PET is useful to determine the primary sites, that is, extranodal origin DLBCL with its clear images.
authors: Department of Radiology, National Center for Geriatrics and Gerontology, 36-3, Gengo, Morioka-cho, Ohbu 474-8522, Japan. dr284@hotmail.com
authors: Takashi
authors: T
authors: Nihashi
authors: Kazumasa
authors: K
authors: Hayasaka
authors: Toshihide
authors: T
authors: Itou
authors: Kengo
authors: K
authors: Ito
authors: Rikio
authors: R
authors: Kato
authors: Toshiharu
authors: T
authors: Okae
authors: Takeo
authors: T
authors: Ishigaki
mesh_terms: D001943:Breast Neoplasms / Q000000981:diagnostic imaging*; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging*; D008198:Lymph Nodes / Q000000981:diagnostic imaging; D016403:Lymphoma, Large B-Cell, Diffuse / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D049268:Positron-Emission Tomography / Q000379:methods*; D019275:Radiopharmaceuticals; D013160:Splenic Neoplasms / Q000000981:diagnostic imaging*; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging*
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18