Presence is determined through various methods, including:
Staining Techniques: Different stains, such as Hematoxylin and Eosin (H&E), are used to highlight specific components of tissues, making it easier to identify and confirm their presence. Microscopy: Using different types of microscopes, such as light microscopes and electron microscopes, to observe tissues at different magnifications and resolutions. Immunohistochemistry: This technique uses antibodies to detect specific antigens in tissues, confirming the presence of particular proteins or cell types. In Situ Hybridization: A method that uses labeled RNA or DNA probes to detect the presence of specific nucleic acid sequences within tissues.
