One of the most important considerations in an adult presenting with a lump in the neck is that the mass may represent a metastatic deposit from a primary cancer, often but not always in the upper respiratory or alimentary tract.
While some of these patients may require parenteral nutrition, use of the alimentary tract with tube feeding is cheaper and has less adverse effects.
Among the alimentary tract lesions for which HIV may play a direct pathogenic role are idiopathic ulcers of the esophagus and rectum.
Though these organisms may also be found as normal flora of alimentary tract, data supporting this contention are lacking.
Indeed, the visitors enact the alimentary behavior of the oasis dwellers, but in so doing, they experience their own civilized difference from and advantage over the ‘natives.’
Other cancers which have been reported include those from the alimentary tract.
A foregut-fermenting alimentary system independently originated in these organisms to facilitate the digestion of the cellulose-rich food.
The plate section at the end contains illustrations of the alimentary , cardiovascular, respiratory, lymphatic, musculoskeletal, nervous, endocrine, and urogenital systems.
The main sections include basic tissues and cell biology, protective organ systems of the body, blood circulatory organ systems, alimentary organ systems, endocrine organ systems, and reproductive organ systems.
Delirium and dementia may arise from brain metastases, which usually originate from lung cancer but also from tumours of the breast and alimentary tract and melanomas.