What color do muscle and RBC appear when stained with Masson's trichrome?

When stained with Masson's trichrome, muscle fibers and red blood cells (RBCs) typically appear red. This distinct coloration is important for differentiating tissues in histopathological studies.

Masson's trichrome stain is a technique used to differentiate between muscle tissue, collagen, and connective tissue. In this staining procedure, muscle fibers take on a vibrant red color due to the specific binding properties of the staining components to the contractile proteins in the muscle structure. Additionally, RBCs also exhibit a red hue because their hemoglobin components readily bind to the staining reagents.

Other components in the sample, such as collagen, are stained blue or green, which enhances the contrast between different tissue types and allows for better visualization when examining histological slides under a microscope. This contrast is vital for pathologists and researchers to evaluate tissue architecture and detect any abnormalities effectively.