Wei Chen

1) focuses on enhancing the diagnostic accuracy of neuroendocrine tumors, including well differentiated neuroendocrine tumors (NETs), poorly differentiated neuroendocrine carcinoma (NECs), mixed neuroendocrine–non-neuroendocrine neoplasm (MiNEN), through optimized histopathologic and immunohistochemical evaluation. 
2) investigating the refinement of diagnostic definitions and criteria for autoimmune hepatitis and overlapping syndromes to improve consistency in clinical and pathological interpretation.