PAX5 and neoplasm: Histopathology showed interspersed growth of the tumor cells in the rhabdomyus and immunohistochemistry showed cluster of differentiation (CD) 20(+), paired box-5 (PAX-5) (+), B-cell lymphoma (BCL)-2 (focal+), BCL-6 (+), CD10 (–), multiple myeloma oncogene (MUM)-1 (+), CyclinD-1 (–), Ki-67 (90%+), CD138 (–), CD3 (–), CD30 (–), anaplastic lymphoma kinase (ALK) (–), myeloperoxidase (MPO) (–).