case_images: PMC5901268_01
case_images: CT of chest shows a mass measuring approximately 7 x 7 cm in right lower lobe.
case_images: ZJCH_A_1424485_F0001_OC.jpg
case_images: PMC5901268_01_ZJCH_A_1424485_F0001_OC.jpg
case_images: F0001
case_images: He initially underwent a computerized tomography (CT) scan of the lung with intravenous contrast, which revealed a 7 x 7 cm mass in his RLL that was initially treated as pneumonia (Figure 1).
case_images: CT of chest shows postsurgical changes (24 months after surgery) with no disease activity.
case_images: ZJCH_A_1424485_F0002_OC.jpg
case_images: PMC5901268_01_ZJCH_A_1424485_F0002_OC.jpg
case_images: F0002
case_images: The S-100 (Figure 2), melanocyte-associated monoclonal antibody (MSA), HMB45, and alpha-smooth muscle actin (alpha-SMA) were all positive.
case_images: Resected lung tissue stain positive for S-100.
case_images: ZJCH_A_1424485_F0003_OC.jpg
case_images: PMC5901268_01_ZJCH_A_1424485_F0003_OC.jpg
case_images: F0003
case_images: CT scan of lung every 6 months and has no clinical or radiologic evidence for recurrence. CT scan of patient's chest done 24 months after resection showed no evidence of disease (Figure 3).