Case Report
Copyright ©The Author(s) 2015.
World J Gastroenterol. Aug 28, 2015; 21(32): 9675-9682
Published online Aug 28, 2015. doi: 10.3748/wjg.v21.i32.9675
Figure 4
Figure 4 Findings of immunohistochemistry. A: Immunohistochemistry for melan-A (× 400). The tumor cells diffusely expressed melan A; B: Immunohistochemistry for HMB45 (× 400). The tumor cells focally expressed HMB45; C: Few tumor cells weakly expressed alpha-SMA (× 400); D: Many IgG4-positive plasma cells were observed in the nodule (× 200).