Mantle cell lymphoma (MCL) is a type of cancer that affects the lymph nodes and blood. It is a rare form of non-Hodgkin's lymphoma (NHL) that typically occurs in older adults. Some synonyms for the term "Mantle cell lymphoma" include: - Mantle zone lymphoma - Centrocytic lymphoma - Cyclin D1-positive lymphoma - Small lymphocytic lymphoma with mantle cell features - In situ mantle cell lymphoma While these terms may have slightly different meanings or implications in medical jargon, they all refer to the same condition of cancerous cells originating in the mantle zone of the lymph nodes. Treatment options for MCL may include chemotherapy, immunotherapy, stem cell transplantation, and radiation therapy.