Actin expression in pericytes surrounding a small blood vessel. Note the endothelial cells are negative.
"Tram track" pattern of actin expression in myofibroblasts.
"Tram track" pattern of actin expression in myofibroblasts.
"Tram track" pattern of actin expression in myofibroblasts.
Actin expression in PEComa.
Actin expression in a rare example of angiomyolipoma with epithelial cyst. Most of the ovarian-like stroma cells (adjacent to cyst epithelium) are negative for actin.
Actin expression in normal glomerulus and adjacent blood vessel.
Smooth muscle actin expression in glomangioma/glomus tumor.
Smooth muscle actin expression in pilar leiomyoma.