After five to 10 years, low-grade disorders begin to progress rapidly to become aggressive or high-grade and produce more severe symptoms. This type progresses fairly rapidly without treatment. With treatment, remission can be induced in between 50 to 75 percent of cases.

Does lymphoma develop quickly?

The lymphoma is fast-growing. But the chance for a cure with chemotherapy is good if it hasn't spread to the bone marrow when first diagnosed. Cutaneous T-cell lymphoma (mycosis fungoides, Sezary syndrome).

How quickly do cancerous lymph nodes grow?

If the lymph node is cancerous, the rapidity with which the lump arises and grows depends on the type of lymphoma that is present. In rapidly growing lymphomas, lumps can appear in a matter of days or weeks; in slower-growing types, it can take months or even years.