Ewa Majchrzak1, Witold Cholewiński2, Wojciech Golusiński1. 1. Department of Head and Neck Surgery, Poznan University of Medical Sciences, Poland. 2. Nuclear Medicine Department, Greater Poland Cancer Centre, Poznan, Poland.
Abstract
AIM: The aim of the present study was to estimate the clinical effectiveness of (18)F-FDG-PET/CT in the detection of the primary tumor in patients with histologically proven squamous cell carcinoma cervical lymph nodes metastasis from an unknown primary. BACKGROUND: (18)F-fluorodeoxyglucose positron emission tomography combined with CT ((18)F-FDG-PET/CT) is believed to be very helpful in localization of primary tumor in CUP Syndrome patients. MATERIAL AND METHOD: 41 patients referred to Poznan Medical University Department of Head and Neck Surgery from January 2010 to December 2013 with CUP Syndrome were included in the study. All patients presented fine-needle biopsy proven squamous cell carcinoma metastasis of the upper-, or mid neck lymph nodes. The final results were obtained from the histopathologic reports of tissue samples from anatomical regions suspected for primary tumor, additional imaging exams as well as clinical follow-up data. RESULTS: The (18)F-FDG-PET/CT successfully detected primary tumor in 7 out of 41 patients (17%). In two more cases the primary tumor was indicated in the lung. 24 of 41 patients (58.5%) analyzed in our study remained without evidence of a primary tumor. In 4 cases (9.75%) we did not reveal any pathology within the localizations indicated by PET/CT on panendoscopy. In 4 cases we obtained histological confirmation of neoplasm on panendoscopy despite the negative results of PET/CT examinations. CONCLUSION: We may suppose a relatively high usefulness of (18)F-FDG-PET/CT in the diagnosis process of CUP Syndrome patients. High NPV may indicate patients with no symptoms of primary tumor, which allows to avoid extensive resection or extra imaging.
AIM: The aim of the present study was to estimate the clinical effectiveness of (18)F-FDG-PET/CT in the detection of the primary tumor in patients with histologically proven squamous cell carcinoma cervical lymph nodes metastasis from an unknown primary. BACKGROUND: (18)F-fluorodeoxyglucose positron emission tomography combined with CT ((18)F-FDG-PET/CT) is believed to be very helpful in localization of primary tumor in CUP Syndromepatients. MATERIAL AND METHOD: 41 patients referred to Poznan Medical University Department of Head and Neck Surgery from January 2010 to December 2013 with CUP Syndrome were included in the study. All patients presented fine-needle biopsy proven squamous cell carcinoma metastasis of the upper-, or mid neck lymph nodes. The final results were obtained from the histopathologic reports of tissue samples from anatomical regions suspected for primary tumor, additional imaging exams as well as clinical follow-up data. RESULTS: The (18)F-FDG-PET/CT successfully detected primary tumor in 7 out of 41 patients (17%). In two more cases the primary tumor was indicated in the lung. 24 of 41 patients (58.5%) analyzed in our study remained without evidence of a primary tumor. In 4 cases (9.75%) we did not reveal any pathology within the localizations indicated by PET/CT on panendoscopy. In 4 cases we obtained histological confirmation of neoplasm on panendoscopy despite the negative results of PET/CT examinations. CONCLUSION: We may suppose a relatively high usefulness of (18)F-FDG-PET/CT in the diagnosis process of CUP Syndromepatients. High NPV may indicate patients with no symptoms of primary tumor, which allows to avoid extensive resection or extra imaging.
Entities:
Keywords:
Carcinoma of unknown primary Syndrome; FDG-PET/CT; Squamous cell carcinoma
Authors: C Nanni; D Rubello; P Castellucci; M Farsad; R Franchi; S Toso; C Barile; L Rampin; O Nibale; S Fanti Journal: Eur J Nucl Med Mol Imaging Date: 2005-02-22 Impact factor: 9.236
Authors: Gerreke Regelink; Jolijn Brouwer; Remco de Bree; Jan Pruim; Bernard F A M van der Laan; Willem Vaalburg; Otto S Hoekstra; Emile F I Comans; Arjan Vissink; C René Leemans; Jan L N Roodenburg Journal: Eur J Nucl Med Mol Imaging Date: 2002-05-04 Impact factor: 9.236