Figure 2From: A case of lung adenocarcinoma harboring EGFR mutation and EML4-ALKfusion gene Histology of the primary tumor: (A) well differentiated adenocarcinoma component with acinar pattern (HE ×200). (B) Immunohistochemical examination revealed that tumor cells were positive for monoclonal anti-ALK antibody (5A4) (×200).Back to article page