As a generalisation, indolent lymphomas respond to treatment and are kept under control (in remission) with long-term survival of many years, but are not cured. Aggressive lymphomas usually require intensive treatments, with some having a good prospect for a permanent cure.
In most cases, indolent lymphomas can be effectively treated and kept in check (in remission) for an extended duration, resulting in many years of life expectancy, although they are not completely eradicated. Conversely, aggressive lymphomas usually necessitate more rigorous treatments, with some patients having a high likelihood of achieving a permanent recovery.