eng Science and Education Publishing American Journal of Medical Case Reports 2014-08-31 2 8 161 163 10.12691/ajmcr-2-8-5 AJMCR2014285 article Rajeev sen 1 Sumiti Gupta 1 Meenu Gill 1 Rachneet Kohli 1 Veena Gupta 1 Renuka Verma renuka138pathology@gmail.com 1 Department of Pathology, Pt. B.D. Sharma PGIMS Rohtak, Haryana Mantle cell lymphoma is now recognised as a rare but distinct entity in the revised WHO classification. It is now well recognised that MCL represent a broad spectrum of different histopathological subtypes. The term blastic or blastoid variant is generally used to describe cases with a homogeneous population of cells displaying lymphoblastic morphology. The blastic form of MCL may be difficult to diagnose however immunophenotyping and molecular analysis show typical mantle cell lymphoma pattern. We present a case of 30 year old male presenting with inguinal mass which was diagnosed as blastic transformation of mantle cell lymphoma based on routine histopathology and immunohistochemistry. http://pubs.sciepub.com/ajmcr/2/8/5/ajmcr-2-8-5.pdf mantle cell lymphoma blastoid variant immunohistochemistry