tumors - head and neck
TRANSCRIPT
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TUMORS of the
HEAD and NECK
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What particular problem(s) can tumors of the head and neck give
the patient?
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HEAD and NECK TUMORS PHYSIOLOGIC DISTURBANCES
• BREATHING
• SPEECH
• MASTICATION
• SWALLOWING
• HEARING
• SIGHT
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Scope of presentation
1. Skin and soft tissues of the head and
neck
2. Oral cavity
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ETIOLOGY
• SMOKING
• ALCOHOL
• Human papilloma virus infection
• BETEL NUT CHEWING
• POOR ORAL HYGIENE
• EXPOSURE TO SUN
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HEAD and NECK TUMORS DIAGNOSTIC WORK-UP
• COMPLETE HISTORY AND P.E.
• BIOPSY – FNA, INCISIONAL, PUNCH
• DIRECT LARYNGOSCOPY
• CERVICAL ESOPHAGOSCOPY
• CHEST X-RAY
• others: CT scan, panorex
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TUMORS of the FACE and LIPS
Basal Cell Carcinoma - most common skin cancer - slow growing - ulcer with rolled, pearly borders - “rodent ulcers”
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TUMORS of the FACE and LIPS
Squamous Cell Carcinoma - more aggressive than basal cell cancer - etiol.: exposure to sun - male:female – 20:1 - treatment: surgery radiation (depending on stage) Neck Dissection indicated if l.n. are (+)
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THE ORAL CAVITY
• gingiva
• anterior 2/3 of tongue
• floor of the mouth
• hard palate
• buccal mucosa
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Malignant Lesions of the Oral Cavity
• 95% are squam. cell ca • 10:1 male to female ratio • etiology: pipe/cigar smoking betel nut/tobacco chewing alcohol poor oral hygiene
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Cervical Nodal Groups
pre-auricular/parotid retro-auricular/ sub-occipital submental submandibular superior jugular mid-jugular lower jugular spinal accessory supraclavicular pre-/paratracheal
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ORAL CAVITY MALIGNANT LESIONS
• LOCATION: hard palate
• CELL TYPE: adenocarcinoma
• INVASIVENESS: (+)
• NODAL mets.: not usual in early stage
• TREATMENT: wide excision
• 5-YEAR SURVIVAL: 30-40%
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ORAL CAVITY MALIGNANT LESION
• LOCATION: buccal mucosa
• CELL TYPE: squamous cell ca
• INVASIVENESS: (+)
• NODAL mets: submax., upper cervical
• TREATMENT: wide excision + neck
dissection +/- radiotx. (St. III/IV)
• 5-YEAR SURVIVAL: 55%
• uncommon; Stage I/II best treated with
radiotx.
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ORAL CAVITY MALIGNANT LESIONS
• LOCATION: floor of mouth
• CELL TYPE: squamous cell ca
• INVASIVENESS: (++++)
• NODAL mets.: bilateral submaxillary n.
• TREATMENT: commando opn., + pre-
or post-op radiotx.
• 5-YEAR SURVIVAL: 40%
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RECONSTRUCTIVE SURGERY
• Platysma Myocutaneous Flap
• Latissimus Dorsi Myocutaneous
• Pect. Major Myocutaneous Flap
• Radial Forearm Free Flap
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TEAM APPROACH in the TREATMENT of H and N
CANCER
• Head and Neck Surgeon
• Radiation Onco., Medical Onco.
• Plastic/Reconstructive Surgeon
• Clinical Patho., Speech Patho.
• Dentist
• Nurse, Social Worker
• Nutritionist
• Physical Therapist
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ORAL CAVITY MALIGNANT LESIONS
• LOCATION: tongue
• CELL TYPE: squamous cell ca
• INVASIVENESS: (+++)
• NODAL mets.: submental, submand.
• TREATMENT: same as floor of mouth
• 5-YEAR SURVIVAL: 30-50%
• 30-40% occult nodal mets. in early
stage; selective neck dissection
recommended
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ORAL CAVITY MALIGNANT LESIONS
• LOCATION: gingiva
• CELL TYPE: squamous cell ca
• INVASIVENESS: (++)
• NODAL mets.: submaxillary nodes
• TREATMENT: commando operation
• 5-YEAR SURVIVAL: 45%
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SALIVARY GLANDS
PAROTID GLANDS
SUBMAXILLARY GLANDS
SUBLINGUAL GLANDS
MINOR SALIVARY GLANDS
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SALIVARY GLANDS MALIGNANT TUMORS
• 20% of PAROTID G. TUMORS
• 50% of SUBMAND. G. TUMORS
• 75% of MINOR SALIV. G.
TUMORS
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SALIVARY GLANDS MALIGNANT TUMORS
Mucoepidermoid carcinoma - most common malignant tumor of the parotid gland - may be low or high grade - treatment: excision for low grade; radical surgery + neck dissection + radiotherapy for high grade
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SALIVARY GLANDS MALIGNANT TUMORS
Adenoid Cystic carcinoma - common in submand. and minor salivary g. tumors - has propensity for perineural invasion - treatment: radical resection + post- op. radiotherapy for high grade tumors
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SALIVARY GLANDS MALIGNANT TUMORS
Malignant Mixed Tumor - arises from a pre-existing benign mixed tumor Adenocarcinoma - most are high grade - most common in minor salivary glands
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SECOND PRIMARY TUMORS
• overall incidence: 14%
• detected w/in 6 months – synchronous
• detected after 6 months – metachronous
• incidence increased if predisposing factor(s) still present
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PALLIATIVE CARE
for those with advanced disease
radiation, chemotherapy
pain control
tracheostomy, gastrostomy
hospice care
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TUMORS of the NECK (adults)
• Inflammatory 4%
• Congenital/Miscellaneous 12%
• Neoplastic 84%
metastatic 80%
primary to neck 20%
lymphomas 60%
saliv. g. tumors 40%
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CONGENITAL LESIONS NECK
Thyroglossal duct cyst
Branchial cleft cyst
Cystic hygromas/lymphangiomas
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Neck Tumors with Occult Primary
1. Thyroid carcinoma
2. Role of human papilloma virus infection
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FOLLOW-UP, POST-TREATMENT OF H/N CANCER
Regular, for at least 5 years
Monitor for recurrence
Perform good history and PE
Look for side effects of treatment
Annual chest x-ray
Dental referral for post-radiotx.
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SUMMARY
1. The head and neck is a confined area
where tumors can cause unique
problems
2. Majority of the tumors in the area are
squamous cell carcinomas
3. Tumors of the neck have differing
etiologies in the very young compared
to the old patient