Fig. 4From: Gradually shrinking intra-abdominal desmoid tumor derived from the stomach in a young boy: a case reportHematoxylin and eosin staining revealed the proliferation of spindle-shaped cells and dense collagen bundles, mainly at the muscularis propria of the stomach. a Immunostaining indicated that tumor cells were negative for CD34 (b), c-kit (c), desmin (d), S-100 (e), and β-catenin (f)Back to article page