These metabolic findings correlate with the pathological results, particularly the high expression levels of Bcl-2, Bcl-6, and C-MYC (20), reinforcing the utility of SUVmax in assessing lymphoma aggressiveness.Reports of multisystem extranodal lymphoma are rare, and most involve some degree of lymph node infiltration (21, 22). The gene discussed is MYC; the disease is lymphoma.