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Solitary pulmonary nodule and 18F-FDG PET/CT. Part 1: epidemiology, morphological evaluation and cancer probability* * Study developed at Liga Norte Riograndense Contra o Câncer and Universidade Federal do Rio Grande do Norte (UFRN) - Programa de Pós-Graduação em Saúde Coletiva, Natal, RN, Brazil.

Marcos Pretto Mosmann Marcelle Alves Borba Francisco Pires Negromonte de Macedo Adriano de Araujo Lima Liguori Arthur Villarim Neto Kenio Costa de Lima About the authors


Solitary pulmonary nodule corresponds to a common radiographic finding, which is frequently detected incidentally. The investigation of this entity remains complex, since characteristics of benign and malignant processes overlap in the differential diagnosis. Currently, many strategies are available to evaluate solitary pulmonary nodules with the main objective of characterizing benign lesions as best as possible, while avoiding to expose patients to the risks inherent to invasive methods, besides correctly detecting cases of lung cancer so as the potential curative treatment is not delayed. This first part of the study focuses on the epidemiology, the morfological evaluation and the methods to determine the likelihood of cancer in cases of indeterminate solitary pulmonary nodule.

Solitary pulmonary nodule; Positron-emission tomography; Computed tomography

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