Myopericytom

Histopathology [Figure 1] and [Figure 2] revealed well-circumscribed tumor tissue composed of plenty of vascular channels lined by concentrically arranged myoid cells that blend with the surrounding stroma as well. Immunohistochemically, most tumor cells of AM and MPC are positive for smooth muscle actin (SMA). [1],[3],[5] Application of strict morphological criteria and appropriately selective immunohistochemical markers will help in distinguishing MPC from its mimics. Immunohistochemically, the tumour cells express positive reactivity for alpha-SMA (α-SMA),[5] muscle-specific...