Burkitt lymphoma
An aggressive mature/maturing B-cell lymphoma which is characterized by intermediate-sized cells with a very high mitotic index (ki67 close to %100). The typical immunophenotype is CD19+, CD20+, CD10+, CD5-, and BCL2-. The classic translocation associated with this lymphoma is the t(8;14) which involves c-MYC and IgH (see lymphoma mnemonic diagram below for an easy way to remember this and other common B-cell lymphomas).
Atlas Link: Burkitt Lymphoma