Whole Body ~(18)F-FDG PET/CT Imaging for Detecting Primary Tumors of Cervical Metastatic Adenocarcinoma from Unknown Primary Site
10.3969/j.issn.0253-9896.2010.03.015
- VernacularTitle:全身~(18)F-FDG PET/CT在原发灶不明的颈淋巴结转移性腺癌中的应用
- Author:
Jing ZHENG
;
Shuo GAO
- Publication Type:Journal Article
- Keywords:
fluorodeoxyglucose F18;
tomography,emission-computed;
neoplasms,second primary;
adenocarcinomahead and neck neoplasms
- From:
Tianjin Medical Journal
2010;38(3):204-206,后插4
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To retrospectively evaluate whole body ~(18)F-FDG PET/CT in depicting the primary tomors in cervical metastatic adenocarcinoma of unknown primary site.Methods:Seventeen patients were included and underwent whole body PET/CT imaging.The primary tumors and metastases were detected by visual evaluation and measurements of standardized uptake values.The PET/CT impression was verified by histopathology and(or)follow-up.Results:In 17 patienis,primary tumors of 13 patients were confirmed by pathological or clinical follow-up.Among them,8 were in the lung,1 in breast,1 in renal,2 in colon and 1 in cervix.Among the other 4 cases,3 cases were correctly diagnosed as malignant lymphoma finally by PET/CT instead of metastatic adenoearcinoma previously.The sensitivity,specificity and accuracy of PET/CT in were 92.3%,75.0% and 88.2%,identifying primary tumors respectively.After PET/CT examination,10 patients(58.8%)were detected additional metastatic lesions which were missed previously.Conclusion:Whole body ~(18)F-FDG PET/CT may be of relatively higher value in identifying the primary tumor of cervical metastatic adenocarcinoma from unknown primary site.It also may display tumor involvement extent.
