case_images: PMC5810523_01
case_images: Computed tomography (CT) scans of the chest. (A) CT scan before surgery: tumor-like mass in the right upper lobe with blurred contour and irregular margin shown in the lung and mediastinal windows. (B) The 7-year follow-up CT scan after surgery.
case_images: ott-11-751Fig1.jpg
case_images: PMC5810523_01_ott-11-751Fig1.jpg
case_images: f1-ott-11-751
case_images: A computed tomography (CT) scan of his chest showed a rough-edged shadow measuring nearly 32x22x10 mm in the right upper lobe of his lung, as shown in Figure 1 (A: before surgery; B: after surgery).
case_images: Pathological characteristics demonstrated by H&E staining and immunohistochemistry. CK and vimentin immunostaining was positive, while CgA and Syn immunostaining was negative.. Abbreviations: CgA, chromogranin A; CK, cytokeratin; H&E, hemotoxylin and eosin; Syn, synaptophysin.
case_images: ott-11-751Fig2.jpg
case_images: PMC5810523_01_ott-11-751Fig2.jpg
case_images: f2-ott-11-751
case_images: Histopathologic examination revealed the tumor cells were positively reactive to cytokeratin (CK) and vimentin, while immunostaining for chromogranin A (CgA) and synaptophysin (Syn) was negative, as shown in Figure 2.