oral cancer - nhsggc oral_cancer.pdf · oral cancer dr christine goodall consultant oral surgeon...
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Oral Cancer Dr Christine Goodall
Consultant Oral Surgeon University of Glasgow Dental School
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Locations
• Lip, mouth, oropharynx • Tongue, floor of mouth, buccal mucosa,
palate, alveolus, pharynx
• 90% are squamous cell carcinoma • 10% melanoma, adenocarcinoma (usually
salivary gland), sarcoma, lymphoma
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Incidence
• 530 new cases annually in Scotland • Incidence rates
– Males 14/100000 – Females 7/100000
• Higher incidence than rest of the UK • Incidence has increased over the past 20 years • 5 year survival rate is about 50%
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Incidence
• Incidence increases with age • 85% of new cases are in over 50s • However there is a recent increase in
incidence among younger age groups • There is also an increase in cases among
females • So don’t discount symptoms because the
patient is younger or female
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Risk factors
• Smoking • Alcohol-high levels of consumption • Smoking and alcohol act synergistically in the
development of oral cancer • If do both 44x greater risk compared with
non-smokers and occasional drinkers • Alcohol may facilitate the passage of
carcinogens across the oral mucosa
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Risk factors –lip carcinoma
• Sunlight-UV exposure • Usually long term exposure-outdoor workers
etc
• Important to wear sunscreen on lips and face at all times
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Intra-oral SCC other risk factors
• Viral infections eg HPV • Fungal infections –hyperplastic candidiasis • Diet and nutrition
– Low iron, folate, B12-make the oral mucosa thinner, often seen in drinkers
• Physical-heat, mechanical trauma • Immune deficiency • Genetic • Potentially malignant lesions
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Oral SCC in younger people
• 6-7% cases in people <45 years • The incidence in this age group has increased
significantly in recent years
• Higher proportion have never smoked or consumed excess alcohol
• No consensus yet as to whether this is a distinct disease entity
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Oral SCC in younger people-factors under investigation
• Alcohol and tobacco • Betel quid chewing • Immune factors • Viral infections eg EBV HPV • Protective function of diet • Genetic and familial factors • Occupation
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Presentation
• Most cancers arise from normal tissue • Some arise from potentially malignant lesions
– Morphologically altered tissue in which cancer is more likely to occur
• Some arise from potentially malignant conditions
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Potentially malignant lesions
– Leukoplakia-white patches – Erythroplakia-red patches – Speckled lesions –mixed red and white patches
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Leukoplakia
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Leukoplakia
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Erythroplakia
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Speckled leukoplakia
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One not to worry about-Fordyce’s spots
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Potentially malignant conditions
• Lichen planus • Chronic hyperpastic candidosis • Oral submucous fibrosis • Syphyllis • Immunosuppression
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Lichen planus
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Chronic hyperplastic candidiasis
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Presentation
• Ulcer • Exophytic mass • Swelling • White/red/speckled lesion • Mobility of teeth • Non-healing socket • Neck mass
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Oral cancer
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Presentation
• Pain • Cranial neuropathy-numbness • Altered function
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Presentation
• Duration of symptoms • Ulcer • Lump • Pain • Bleeding • Difficulty swallowing • Hoarseness
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Presentation -lip
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High risk patient
• Male • 40+ • Heavy smoker • Heavy drinker • Enlarged cervical lymph node >2cm • Recent onset • Significant increase in size • Painless • Firm-hard consistency
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What to do if suspicious
• Tell the patient you are worried • You want them to see their dentist/doctor as
soon as possible • They will then be referred to a specialist • You can also phone yourself
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What happens on referral
• Patient is fast tracked • Full history and exam • Biopsy • FNA of neck lumps • Staging investigations US/CT/MRI • EUA-to look for 2nd primary (10%) • Endoscopy
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MDT
• Once all the information is gathered • Case is referred to the MDT • They discuss and decide on treatment
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Treatment
• Surgery • Radiotherapy • Chemotherapy
• Surgery and radiotherapy are acceptable
either alone or in combination • Increasing role for chemotherapy
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Side effects of radiotherapy
• Mucositis -GelClair, Difflam • Ulceration-GelClair, Difflam • Xerostomia- Biotene, saliva substitutes • Loss of taste
• These are all things you may be asked to help
with
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Some things that aren’t cancer Denture hyperplasia
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Leaf fibroma
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Leaf fibroma
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Haemangioma
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Mucocoele
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Ranula
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Aphthous ulceration
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Herpes
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Remember • ‘Normal’ minor aphthous ulcers heal up in 2 weeks or so usually by themselves • OTC medication will provide symptomatic relief • ‘normal’ minor aphthous ulcers tend to occur in crops, they are small and painful
and they recur
• Major aphthous ulcers may occur singly, they are painful, heal with scarring and recur but they do heal albeit in a longer period of time
• Neutropenic ulcers are large and painful
• Ulcers can sometimes be caused by medication eg nicorandil, NSAIDs, beta blockers
• Any ulcer in the mouth that has been present for more than 2 weeks should be checked out
• Also try to avoid Bonjela altogether