Abstract
Introduction and Objective:fluorodeoxyglucose positron emission tomography (PET) is sensitive for detection of neoplastic solitary pulmonary nodules but may have decreased sensitivity for the detection of carcinoid tumors.Our purpose was to analyze PET to detect pulmonary carcinoid tumors.
Methods:We performed a retrospective review of our hospital results regarding PET in the setting of thoracic carcinoid neoplasms.Identified 19 patients with a pathologic diagnosis of bronchial carcinoid who had an previous PET (2006 to 2013).The following data were abstracted from the clinical records:clinical,localization,size,pathology,PET imaging
Results:42% were male,mean age 54,7 years ±12,5
26% smoker,57,8% ex smoker,15,7% no smoker.14 (74%)typical,5(26%) atypical carcinoid tumor
The mean greatest pathologic dimension was 24 mm±8,5;results were significantly different between typical and atypical 21mm±5,2 and 35±7,5, p =0,0034)
We found that there was a consistent location of tumors.47%of this tumors are endobronchial in origin
18 positive PET cases(mean SVmax 2,82 ± 2,37)results were not significantly different between typical and atypical tumor(SVmax 2,34 ±1,33 and SVmax 4,19±4,04,p =0.51)
34% was discrepancy PET imaging between lymph nodes and found to correlate with surgical staging
6(31%) of these cases false-positive and false-negative in 1(5%)
Conclusions:
In our experience PET imaging in detection of carcinoid tumors is somewhat reduced
We didnt find PET imaging useful for the evaluation of typical and atypical thoracic carcinoid tumors
In our sample the PET study are a contributies little to the decision making in these tumors.
- © 2014 ERS
