Normal anatomy and location of the thymus

on 9.2.09 with 0 comments

  • Anatomy

    • Maximum weight of 20-50g achieved at puberty; after that it begins atrophy (severe stress may hasten this)

    • It is pyramidal, bilobed, and well encapsulated with fibrous extensions of the capsule dividing the lobes into lobules; each lobule has an outer cortical layer surrounding a central medulla

    • T cells and thymic epithelial cells are most of the cells there

    • Epithelial cell whorls with keratinized cores form the Hassall corpuscles

    • Macrophages, eosinophils, dendritic cells, B cells, and the occasional neutrophil may be present

  • Located in the anterior mediastinum

Category: Medical Subject Notes , Pathology Notes



Post a Comment