Fig. 4
From: An immunohistochemical approach to detect oncogenic CTNNB1 mutations in primary neoplastic tissues
H&E and β-catenin immunohistochemical staining patterns in desmoid fibromatosis (a–c), pilomatrixoma of skin (d–f), and solid pseudopapillary tumor of pancreas (g–i). H&E stains on the left and positive β-catenin immunohistochemistry assays in the middle. These tumors are known to harbor altered/mutant β-catenin. Altered/mutant β-catenin fails to stain with the ABC (active β-catenin) antibody (right). Scale bars, 100 μm
