case_images: PMC4311031_01
case_images: Chest computed tomography (CT) scan in December of 2012 (B) showed a 2.5-cm diameter hilar mass that was little changed, as compared to the cardiac angio CT scan in March of 2010 (A).
case_images: trd-78-23-g001.jpg
case_images: PMC4311031_01_trd-78-23-g001.jpg
case_images: F1
case_images: A cardiac angio computed tomography (CT) scan performed at that time detected a 2.5-cm diameter, minimally enhanced mass in the right hilar area (Figure 1A). A chest CT scan showed a 2.5-cm diameter mass in the right hilum that changed little in terms of size since 2010 (Figure 1B).
case_images: Grossly, several enlarged lymph nodes (arrows) were found in the hilar and interlobar area.
case_images: trd-78-23-g002.jpg
case_images: PMC4311031_01_trd-78-23-g002.jpg
case_images: F2
case_images: Grossly, several enlarged lymph nodes were found in the hilar and interlobar areas (Figure 2).
case_images: Microscopic finding showed metastatic squamous cell carcinoma to the lymph nodes (H&E stain, x40; insert image: H&E stain, x200).
case_images: trd-78-23-g003.jpg
case_images: PMC4311031_01_trd-78-23-g003.jpg
case_images: F3
case_images: Microscopically, metastatic squamous cell carcinoma was found at several lymph nodes (8/45) and there was no tumor in the lung parenchyma and bronchial tree (Figure 3).