Free trial adult chat line sites
On a comparative basis, it is difficult to prove benefit when relapsing disease is followed with watchful waiting, or when the median survival is more than 10 years.Follicular lymphoma and primary follicular lymphoma of the duodenum are particularly indolent variants that rarely progress and rarely require therapy.[20,21] A so-called pediatric-type nodal follicular lymphoma has indolent behavior and rarely recurs; adult patients with this histologic variant are characterized by a lack of rearrangement in conjunction with a Ki-67 proliferation index greater than 30% and a localized stage I presentation. Patients with indolent lymphoma may experience a relapse with a more aggressive histology.The Rappaport classification, which also follows, is no longer in common use.As the understanding of NHL has improved and as the histopathologic diagnosis of NHL has become more sophisticated with the use of immunologic and genetic techniques, a number of new pathologic entities have been described. In addition, the understanding and treatment of many of the previously described pathologic subtypes have changed.The non-Hodgkin lymphomas (NHL) are a heterogeneous group of lymphoproliferative malignancies with differing patterns of behavior and responses to treatment. Like Hodgkin lymphoma, NHL usually originates in lymphoid tissues and can spread to other organs.
NHL can be divided into two prognostic groups: the indolent lymphomas and the aggressive lymphomas.
Knowledge of cell surface markers and immunoglobulin and T-cell receptor gene rearrangements may help with diagnostic and therapeutic decisions.