Respiratory / VISUAL EXPLAINER
How Lung Cancer Begins From Abnormal Cells π«π§¬
One central-airway squamous-cell example distinguishes preinvasive epithelial change from growth into underlying tissue. It is not every lung cancer pathway, and not every abnormal change becomes cancer.

READ THE IMAGE
What the illustration shows
Navy and gold poster titled How Lung Cancer Begins From Abnormal Cells, with lung and DNA symbols. A curved central-airway wall shows ciliated tall cells and smaller basal cells in one epithelial sheet above a cyan basement membrane. A localized coral patch remains above the intact boundary, labeled preinvasive epithelial change and not invasive cancer. A small lung-and-bronchus locator sits at upper right. Lower panels contrast changed cells confined above the membrane with a separately framed conceptual invasion into underlying tissue. Text states one possible pathway, not every abnormal change becomes cancer, and not a predicted next step. Gold AllHumanBody.com and the full slogan occupy the navy footer. Original AI-generated educational illustration, not diagnostic microscopy or physician certification. Colors, cell shapes, counts and scale are illustrative, not diagnostic criteria.
How to interpret this poster
- Conceptual contrast, not a predicted next step, grading, diagnostic image, molecular mutation or clinical prognosis. Does not show normal bronchi as squamous-lined.
- AI-assisted educational illustration; not physician certification, a diagnosis or individualized medical advice.
- Fine annotations require enlargement; preserve the full uncropped illustration and its qualifiers.
AI-assisted educational illustration, adapted into web-sized images without changing its composition. This is general education, not an individual diagnosis or treatment recommendation.
EVIDENCE / CONTEXT
Sources and what they support
- NCI: Non-small-cell lung cancer evidence summary β
Central bronchial squamous example and possible preinvasive change, not compulsory progression.
- NCI: What is cancer? β
Growth-control changes and non-inevitable progression of abnormal tissues.
- University of Minnesota faculty Histology Guide: Lung β
Bronchial pseudostratified epithelial boundary and underlying connective tissue.
- NCI SEER: Lung histologies β
Distinct epithelial cancer types, larger-bronchus squamous origin.