Mantle Cell Lymphoma-A Retrospective 2-Year Study

ABSTRACT

Materials and methods Retrospective study for period of 2 years was conducted. For this study, we reviewed bone marrow material along with nodal and extranodal tissues. There were 16 cases of mantle cell lymphoma (MCL). Each patient had an absolute lymphocyte count of more than 10 × 109/l at the time of initial evaluation at our institution. Giemsa stained peripheral blood and bone marrow aspirate smears were reviewed, along with haematoxylin-eosin-stained histologic sections of bone marrow aspiration and core biopsy specimens. The immuno-phenotype of the neoplastic cells supported the diagnosis of MCL. The clinical and pathological spectrum will be discussed. Immuno-histochemistry Immuno-histochemical staining for CD3, CD20, CD23, CD1O, KI67 CYCLIN D1 were performed on formalin-fixed, paraffin-embedded tissue sections of either bone marrow aspirate or core biopsy tissue sections in all 16 cases. Results There were 11 men and 5 women with a median age of 68 years (range, 40–74 years). Physical examination revealed splenomegaly in 15 out of 16 patients. Lymphadenopathy involving multiple sites was present in 10 patients. Conclusion MCL can exhibit a wide spectrum of morphologic findings. We suggest that cell size and chromatin characteristics are useful for dividing these cases into two groups small cell and large/blastoid. The large/blastoid group predicts poorer prognosis and includes cases with large cells, many of which are nucleolated and resemble prolymphocytes, as well as blastoid cells that resemble lymphoblasts. In this study, a cut-off of at least 20% large/blastoid cells best predicted poorer survival.