Case Report
Copyright ©2011 Baishideng Publishing Group Co.
World J Gastroenterol. Nov 14, 2011; 17(42): 4734-4738
Published online Nov 14, 2011. doi: 10.3748/wjg.v17.i42.4734
Figure 3
Figure 3 Histopathological findings. A: Hematoxylin and eosin staining discloses crowded rounded or elongated cells within distinct cytoplasm and hyperchromatic nuclei (magnification, x 100); B: Immunohistochemical study for HMB45 (anti-melanoma protein mAb). The positive reaction (brown cytoplasmic reaction) supports the diagnosis of malignant melanoma (magnification, x 100).