Incidental pulmonary nodule frequency in Turkey
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Introduction: Pulmonary nodules are common incidental findings on computed tomography (CT). In Turkey, there is no available data about the follow-up of the frequency of incidental nodules. Our aim is to assess the frequency and size distrubition of incidental pulmonary nodule in our country. Materials and Methods: Between January 2015 and December 2016, computed tomographies, taken of all outpatient and emergency department that recorded in the screening database were examined retrospectively. Nodules and their characteristics (number, size, density, localization) and relationship between age and gender were evaluated. Results: The age range of the cases was mean 58.99 +/- 16.20 years, 256 (42.5%) were women and 347 (57.5%) were men. A total of 288 (48.25%) cases had 420 nodules. Solid nodule was present in 184 cases (30.5%). The number of cases with one solid nodule was 119 (64.7%). There were 124 solid nodules (55.36%) of >= 4-< 6 mm diameter, 64 solid nodules (28.57%) of >= 6-< 8 mm diameter and 36 solid nodules (16.07%) of >= 8 mm diameter. Nodule frequency increased statistically significantly with the age (p = 0.001). Conclusion: The frequency of incidental nodule was found higher than in our country than in developed countries.