Fig. 1From: Unclassified mesenchymal sarcoma with NTRK1-KHDRBS1 gene fusion: a case report of long-term tumor-free survival with crizotinib treatmentMicroscopic appearance of a tumor sample showing abundant cell, with no tumor cells invading the epidermal layer of the skin (hematoxylin and eosin stained; ×20 magnification) (a). The immunohistochemical staining of tumor cells showing strong expression of S-100 (hematoxylin and eosin stained; ×20 magnification) (b)Back to article page