An 11-yr-old boy with a 2-yr history of acute myeloid leukemia presented with cervical swelling. Post-contrast axial CT image shows multiple homogeneously-enhancing lymph nodes (white arrows) and lymph node with heterogeneous enhancement due to necrosis (black arrow) along the lateral cervical lymph node chains. The lymph node was shown to be a granulocytic sarcoma by local lymph node biopsy.