Histology Slide of a Primary Lung Cancer (image) Charité - Universitätsmedizin Berlin Share Print E-Mail Caption Under the microscope, both squamous cell carcinoma of the lung and squamous cell carcinoma of the head and neck appear as dense cell groups with non-specific growth patterns, making them impossible to distinguish based on tissue microstructure. Credit Photo: Jurmeister/Charité Usage Restrictions The image may only be used with appropriate credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.