Clinical implication of 18F-FDG PET/CT in carcinoma of unknown primary

Rok, strany: 2011, 135 - 139

The value of 18F-Fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) in the detection of carcinoma of unknown primary (CUP) differs among the studies. This study aimed to evaluate the role of 18F-FDG PET/CT in CUP. <br />Fifty-one patients (19 women, 32 men) with metastasis confirmed by histopathology from an unknown primary tumor were included in this study. Patients received 370 MBq of 18F-FDG intravenously, and PET/CT was performed at 60 minutes after injection. <br />Primary tumor sites were detected in 5 of 51 patients (9.6%): in 2 patients with carcinoma of the lung, in 1 patient with carcinoma of the gallbladder, in 1 patient with carcinoma of the esophagus, and in 1 patient with carcinoma of the stomach. No primary tumor was discovered in the remaining 46 patients (90.4%) during the follow-up. The sensitivity, specificity, and accuracy of 18F-FDG PET/CT were 100%, 80.4%, and 82.4%. The positive and negative predictive values were 35.7 and 100%, respectively.<br />Based on the data presented, 18F-FDG PET/CT has a clinical implicative value in detecting the primary tumor of CUP. PET/CT can be useful to rule out the possibility of detecting the primary tumor during the follow-up. Keywords: Fluorodeoxyglucose F18, positron-emission tomography, neoplasms, unknown primary

ISO 690:

Pak, K., Kim, S., Kim, I., Nam, H., Kim, B., Kim, K., Kim, Y. 2011. Clinical implication of 18F-FDG PET/CT in carcinoma of unknown primary. In NEOPLASMA, vol. 58, no.2, pp. 135-139. 0028-2685.

APA:

Pak, K., Kim, S., Kim, I., Nam, H., Kim, B., Kim, K., Kim, Y. (2011). Clinical implication of 18F-FDG PET/CT in carcinoma of unknown primary. NEOPLASMA, 58(2), 135-139. 0028-2685.