What is the fastest rate at which primary amyloidosis can spread?

Amyloidosis: First, i must sincerely apologize for this disease. It is bad. The progression is difficult to determine but unfortunately amyloidosis is progressive...And never in the nice sort of way. Most importantly, remember that quality of life is more important than quantity of life.

Amyloidosis: The type of amyloidosis determines the rate of spread. Most are slow over time. Amyloid secondary to neoplasms may be the most rapidly progressing types.