Case Report
Copyright ©The Author(s) 2021.
World J Clin Cases. Aug 6, 2021; 9(22): 6457-6463
Published online Aug 6, 2021. doi: 10.12998/wjcc.v9.i22.6457
Figure 4
Figure 4 Postoperative pathological examination. A: Hematoxylin-eosin staining photomicrograph (original magnification × 200) of the mass showed tightly packed spindle cells; B: Immunofluorescence examination (original magnification × 200) demonstrated S100 positivity on immunohistochemical analysis.