[Comparative aspects of the course of periodic disease without and with amyloidosis (analysis of 437 case studies)].

The paper is concerned with an analysis of a course of periodic disease (PD) without and with amyloidosis using also a method of the determination of survival rates in 437 patients followed up for 20 yrs. A course of PD without amyloidosis was benign and did not affect the patients' survival. In the development of amyloidosis the prognosis was unfavorable and determined by a degree of generalization of amyloidosis.