Burkitt-like lymphoma with 11q aberration

Burkitt-like lymphoma with 11q aberration (BLL-11q) is a newly recognized entity in the revised 4 th (2017) edition of the WHO Classification of Tumours of Haematopoietic neoplasms. These tumours lack the MYC rearrangement seen in Burkitt lymphoma and instead have the hallmark 11q-gain/loss pattern detected on fluorescence in situ hybridization (FISH). We report a case of BLL-11q in a 33-year-old male with an ileocaecal mass and associated abdominal lymphadenopathy. Microscopy showed tumour morphology and immunoprofile in keeping with Burkitt lymphoma, however, no MYC rearrangement was detected and instead 11q aberration was found on FISH analysis. We also report characteristics of cases diagnosed as BLL-11q from Leeds Haematological Malignancy Diagnostic Service.