Neoplasms of Head & Neck - Lecture 7 Flashcards
where do neoplasms of head and neck arise from?
- epithelial carcinomas
- arise from mucosal surfaces
what type of carcinoma are most epithelial carcinomas of head and neck?
squamous cell carcinoma
where can lesions occur?
nasopharynx, oral cavity, oropharynx, larynx
tumors and precancerous lesions?
- SCC
- leukoplakia
- melanoma
SCC is most commonly malignancy where?
head and neck
what can increase risk of oropharyngeal cancer?
Smoking, ETOH abuse, and/or being infected with HPV
what are oral cavity cancers associated with?
- Non-healing ulcers or masses
- Dental changes or poorly fitting dentures
are oral cavity cancers anterior or posterior cancers?
anterior
how do tongue and lip cancers present as?
exophytic or ulcerative leasions often associated with pain
what is most affected with cancer, tongue or lip?
tongue
what is major risk factor for tongue and lip cancers?
tobacco/ETOH
-also synergistic effect
where do posterior cancers occur?
oropharynx
- SCC most common
- HPV major risk factor
do malignant oral lesions have big or little improvement in early detection?
-Little improvement in early detection as many patients do not present until late (Stage III or IV)
who do most tobacco-related malignant oral lesions occur in?
Pts older than 60
who is affected more by malignant oral lesions, male or female?
males
-including HPV positive tumors
malignant oral lesions clinical presentation
- SCC preceded by premalignant changes of oral mucosa (leukoplakia or erythroplakia)
- as cancer develops, notice presence of non-healing ulcer
symptoms of later stage of malignant oral lesions?
- bleeding
- Loosening of teeth
- Difficulty wearing dentures
- Dysphagia
- Dysarthria
- Hoarseness
- Development of neck mass
who do you maintain a high index of suspicion for malignant oral lesions?
tobacco and alcohol users
where do HPV-related malignant head and neck SCC’s arise from?
oropharynx, particularly palatine and lingual tonsils
what does HPV-16 affect?
posterior part of the tongue
- does NOT produce visible lesions/discolorations
- NO early warning signs
who have oral tongue cancers increased in?
young women - often with NO significant tobacco or alcohol exposure
(22-44 y.o)
what do head and neck lesions NOT present with?
Most head and neck lesions do NOT present with history of premalignant lesions
symptoms of malignant head and neck lesions?
- Pain – minimal
- Otalgia
- Dysphagia
- Odynophagia
- Airway obstruction
signs of malignant head and neck lesions?
- Cervical lymphadenopathy
- Cranial neuropathies
- Decreased tongue mobility
- Fistulas
- Skin involvement
locations of malignant head and neck lesions in pharynx?
nasopharynx