a clearly defined type of malignant lymphoma characterized by specific histopathology and chromosome translocation and slow growth.

This term is used to describe a lymphoma in which the lymphoma cells are grouped in clusters or follicles in the lymph node. This pattern is distinct from diffuse lymphomas in which the lymphoma cells are spread more or less evenly throughout the lymph node. On average follicular lymphomas are not as rapidly progressive as diffuse lymphomas.

A slow growing, or indolent, low grade lymphoma.

A type of B-cell non-Hodgkin's lymphoma (cancer of the immune system) that is usually indolent (slow-growing). The tumor cells grow as groups to form nodules. There are several subtypes of follicular lymphoma.

Follicular lymphoma (FL) is the most common of the indolent non-Hodgkin's lymphomas. It is defined as a lymphoma of follicle center B-cells (centrocytes and centroblasts), which has at least a partially follicular pattern.