periarteriolar reticular sheath cells and sinusoidal lining cells in the spleen , epithelial cells in hassall 's corpuscle of the thymus , epithelial cells between the cortex and medulla of the follicles in the bursa of fabricius , and macrophages in all 3 tissues contained nucleocapsids in the nuclei and virions in cytoplasmic vacuoles before necrosis occurred .
C0010834
cytoplasmic
C0042219
vacuoles