Amyloidosis - a general disease with a lesion of many organs and the various fabric structures, described disturbance of an albuminous exchange and extracellular adjournment in them of a complex albuminous complex. Distinguish following basic forms of an amyloidosis: 1) a primary amyloidosis; 2) secondary, arising on a background of the long chronic diseases, tissues described by disintegration and an absorption of products of disintegration (at a pulmonary tuberculosis and other organs, a bronchoectatic disease, a chronic osteomyelitis, etc.) or appreciable pathological disturbances (a nonspecific ulcerative colitis, a serum disease, etc.); 3) idiopathic; 4) a senile amyloidosis. The lesion of an alimentary system meets at any form of an amyloidosis, especially its some departments (tongue - a macroglossia, an intestine, a liver). In most cases the lesion of an alimentary system represents only one of many localizations of process (the amyloidosis of kidneys, skins simultaneously takes place, a sceletal musculation, nervous system and other organs and tissues).