Title: Corpuscles in thymus (human, puberty)
Description: Stain: Azan.
Several thymic Hassall’s corpuscles (*) of varying sizes within the medulla (1). Light-stained epithelial reticular cells (4, →) form the cytoreticulum of the organ. (2) indicates a small blood vessel. The Hassall’s bodies are surrounded by recognizable flattened cells showing keratohyalin granules (3, →). The outer shell consist of more layers of close packed concentrically arranged cells with light-stained nuclei characteristic for these specialized epithelioreticular cells. The small cells with dark nuclei are thymocytes or T cells.
Keywords/Mesh: lymphatic tissue, thymus, Hassall’s corpuscle, histology, POJA collection