cases, salivary gland Week 27: Case 1 April 26, 2023 pathadmin 1. Presented by William Westra, M.D. and prepared by Angelique W. Levi, M.D.78 year-old woman with a submandibular mass. An immunostain for smooth muscle actin is included below (Image 4)./images/s-7649a.jpg/images/s-7649b.jpg/images/s-7649c.jpg/images/s-7649d.jpg/images/s-7649e.jpgExtraskeletal osteosarcomaRhabdomyosarcomaUndifferentiated carcinomaCarcinosarcoma (true malignant mixed tumor)Carcinoma ex-mixed tumor Loading...