Pleomorphism - Variation in cells Size and shape loss of polarity - variable nucleus position, poorly defined apical and basal surfaces Hyperchromasia - dark dense nucleus mitoses with abnormal forms - replication of mature cells

Hilar cancers can often be small cells or glandular cells?

sarcoma vs carcinoma

A factor in grading is level of differentiation

staging and TNM system

Types of lung cancer: Adenocarcinoma This forms glands and can produce mucin

Squamous cells carcinoma Small call carcinome