Fig. 2
From: CT patterns and serial CT Changes in lung Cancer patients post stereotactic body radiotherapy (SBRT)
SBRT-treated lung cancer demonstrates stabilization at 61 months: a) Isodose multiplanar images for SBRT planning. b) Pre-SBRT CT shows a solid nodule. c) 10 months (mo) post-SBRT the primary lesion slightly decreased in size with development of diffuse ground glass opacity surrounding the nodule. d) 24 mo post-SBRT “the orbit sign” pattern developed. 40 (e) and 49 mo (f) post-SBRT there was gradual increase in density “filling in” the area between the irradiated nodule and the surrounding curvilinear density gradually obscuring the “orbit sign”. g) 61 mo post-SBRT there was stabilization of “mass-like” pattern. h) 72 mo post-SBRT there was no interval change