Presentation on theme: "Cancer: The Clinical and Diagnostic Approach"— Presentation transcript:
1 Cancer: The Clinical and Diagnostic Approach John P. Gobetti, D.D.S., M.S.Oral Medicine/Diagnosis SectionDept. of Oral Medicine, Pathology, OncologyUniversity of Michigan School of DentistryAnn Arbor, Michigan(734) or (734)
2 Cancer Facts 1.4 million new cases diagnosed every year 29,000 oral cavity/pharynx19,000 men and 10,000 women.7,300 deaths, 4,910 men and 2,410 women.Higher number of deaths than Hodgkin’s Disease, and cervix, brain, and thyroid cancer.
3 Oral Cavity/Pharynx Cancers Highest incidence/mortality rates in African Americans.Five year survival rate 56%.Majority are squamous cell carcinomas.Ventrolateral border tongueFloor of mouthLippharynx
4 Oral Cavity/Pharynx Cancers cont’d 90% in people 45 years and older.Average age of diagnosis 60 years old.Most cases attributed to tobacco use.Cigarettes, cigars, pipes, and smokeless tobacco
5 Oral Cavity/Pharynx Cancers cont’d Other risk factor includes:Human papilloma virus (HPV)Low consumption of fruits/vegetablesLong-term sun exposure, lip cancerChronic alcohol use
6 National Health Objectives – Healthy People 2010 Reduces oropharyngeal cancer rate.Increased early detection.Increased availability of oral cancer examinations.American cancer society recommends:- annual oral cancer examination at years old and older.- three year oral cancer examination 20 to 39 years old.Only 13% of those 40 and older reported oral cancer examination (1994).
7 Signs and Symptoms of Oral Cancer Signs and symptoms include:Sores that do not healLumps on lip, mouth, or throatWhite and/or red patchesUnusual bleeding, pain, or numbness in mouthSore throat that does not go awayDifficulty or pain with chewing/swallowing
8 Survival Rates 1 year – 81% 5 years – 59% 10 years – 44% 15% of newly diagnosed oropharyngeal cancers will have another cancer in nearby areas, larynx, digestive systems, or lungs.10 to 40% develop a second oral cancer or cancer in associated organs.