Q17. A 10-year-old boy presented with a 2.6-cm left inguinal lymph node.

A 10-year-old boy presented with a 2.6-cm left inguinal lymph node. Flow cytometry demonstrated polytypic B cells with partial CD10 expression and a normal CD4:CD8 ratio. A ThinPrep slide was prepared from the aspirate. Which cytologic interpretation is most appropriate?