Fig. 2

Histopathological and immunohistochemical features of five cases. A Histopathological and immunohistochemical images of NPC vs. NEC for Patient 1 and Patient 2. B NPC and NEC IHC expression for Patient 1 and Patient 2. C NEC IHC expression for Patient 3, Patient 4 and Patient 5. NPC nasopharyngeal carcinoma, NEC neuroendocrine carcinoma, IHC immunohistochemistry