Table of Contents
Washington University Experience | NEOPLASMS (METASTASES) | Microscopic | 73B Metastasis, lung, squamous (Case 73) p40 20X 1
The tumor cells are partially but strongly positive for p40. ---- Not shown: The tumor is not immunoreactive for CK7 and CK20. ---- The morphology and positive p40 immunoreactivity are characteristic of squamous cell carcinoma.
