Ascaridoid Nematodes and pathology of the alimentary tract and its associated organs in vertebrates, including man : a literature review [Nématodes ascaridoÏdes et pathologie du tube digestif et des organes associés chez les vertébrés, homme y compris].

Résumé

4. Mongolian bobaks (Marmota bobac)According to Mozgovoi (1953), heavy infections with Ascaris tarbagan in Mongolian bobaks may lead to blockage of the intestine and rupture of the intestinal wall. Pathogenesis depends on the intensity of infection. In mild infections (with from 10 to 20 worms), some inflammatory phenomena are seen in the intestinal mucosa. The mucous membrane is diffusely swollen, haemorrhagic and inflamed, and at worm attachment points there is often bleeding. In severe infections (with from 75 to 123 worms), the intestinal mucosa is severely inflamed, the wall capillaries are enlarged, the mucosa is extensively ulcerated, and the intestine is dry for a considerable distance. The duodenum and the first part of the middle intestine have the appearance of a greatly enlarged red tube, through the thickened walls of which worms have penetrated.