Examples of missed opportunities for an earlier cancer diagnosis

Some Situations prone to a missed diagnosis in cancer

Tumor	Clinical situation
Lung cancer	False negative X-ray: delays six times longer. Superior sulcus tumours treated for musculoskeletal shoulder pain. Older and socially deprived groups
Larynx	Performing mirror examination significantly shortened the professional diagnostic delay. Women double probability of diagnostic delay
Upper gastrointestinal	Taking acid suppression for symptoms delays the diagnosis
Gastrointestinal	Inappropriate use of a rapid access to an endoscopy service
Cervix cancer	Pregnancy: delayed diagnosis
Rectal cancer	Negative barium enema within the year prior to diagnosis as a cause of the delayed diagnosis