Histological findings of cervical lymph node show spindle- to ovoid-shaped cells arranged intermingled with reactive lymphocytes in (A) hematoxylin-eosin stain (×200). IHC staining of cancer cells shows positivity for CD68 (B) and S100 (D) but negativity for CD1a (C) and EBV (F). Intermingled T-lymphocytes within IDCS show positivity for CD3 (E).