This special series on “Follicular Lymphoma” is edited by Dr. Mark Roschewski, Clinical Director, Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA, and Dr. Carla Casulo, Associate Professor of Medicine, Director of the Hematology/Oncology Fellowship Program, University of Rochester, Rochester, NY, USA.

Given our evolving understanding of the pathogenesis and genetic heterogeneity underlying follicular lymphoma, we feel it is important to dedicate a special issue addressing the important topics. Particularly in the current era of a novel targeted agents and novel immunotherapy approaches that are in develop, it is critical that the general oncologist understand the current concepts related to the tumor microenvironment and emerging biomarkers such as measures of minimal residual disease.

Disclosure
The series “Follicular Lymphoma” was commissioned by the editorial office, Annals of Lymphoma without any sponsorship or funding. MR serves as an unpaid editorial board member of Annals of Lymphoma from October 2020 to September 2022. MR and CC served as the unpaid Guest Editors for the series.