<prompt> Answer this question truthfullyWhat type of stain can be used when performing Immunohistochemistry to identify Sarcomas, Endometrial Carcinoma, RCC, and Meningioma?  <response>: <reason> When performing Immunohistochemistry, a Vimentin stain can be used to identify Sarcomas, Endometrial Carcinoma, RCC, and Meningioma. 