| the pathologic cycle of the infection of the microsporidian microgemma ovoidea (thèl., 1895) amigó et al. 1996 in the liver of the red band fish (cepola macrophthalma l.). | pathologic study of the lesions caused by microgemma ovoidea has shown that after the formation of the xenoma (stage 1), the parasitized cell is infiltrated by host macrophages (stage 2) and quickly encysted by the activity of fibroblasts that form a xenoma wall composed of collagenous fibers (stage 3). the phagocytic activity of the macrophages leads to the formation of a granuloma (stage 4) in which the cyst contents comprise macrophages filled with phagocytosed spores. this phagocytic activit ... | 1998 | 9491419 |