Head and neck neoplasms Flashcards

1
Q

What is the most common malignant head and neck lesion

A

squamous cell carcinoma

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2
Q

Structures of oropharynx

A
  • posterior 1/3 of tongue
  • soft palate
  • lateral and posterior walls of throat
  • tonsils
  • pharynx
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3
Q

what are oral cancers associated with

A
  • non healing ulcers or masses

- dental changes of poorly fitting dentures

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4
Q

Presentation of tongue and lip cancers

A

exophytic or ulcerative lesions often associated with pain

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5
Q

Most of the pts with primary tongue lesions have disease where

A

nodal disease

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6
Q

Major risk factors for tongue and lip cancer

A

tobacco/ETOH

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7
Q

Risk factor for cancer of oropharynx

A

HPV

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8
Q

Most common malignancy of the head and neck

A

oral cavity squamous cell carcinoma

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9
Q

Where do the majority of HPV related head and neck squamous cell carcinomas arise

A

oropharynx, palatine and lingual tonsils

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10
Q

What other structure does HPV16 affect

A

posterior part of the tongue, does not produce visible lesions/discolorations

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11
Q

three categories of oropharynx cancer

A
  • carcinomas of oral cavity proper
  • carcinomas arising n oropharynx
  • carcinomas of the lip vermillion
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12
Q

What threee categories is oral cancer divided into

A
  • well differentiated
  • moderately well differentiated
  • poorly differentiated (poor outcomes)
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13
Q

Alcohol and tobacco have what kind of affect in regards to risk of oral cancer

A

synergistic effect

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14
Q

What two viruses contribute to oral cancers

A

HPV and EBV

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15
Q

What often precedes oral cavity squamous cell carcinoma

A
  • leukoplakia
  • erythroplakia
  • speckled erythroplakia
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16
Q

What often precedes head and neck cancers?

A

NOTHING

17
Q

Leukoplakia classification

A
  • hyperplasia
  • dysplasia
  • carcinoma in situ
  • carcinoma
18
Q

Erythroplakia

A
  • fiery red patch that cannot be clinically identified as anything else
  • shows evidence of high grade dysplasia, carcinoma in situ or invasive SCC
19
Q

Where do the majority of tongue lesions appear

A

lateral and ventrolateral aspects

20
Q

Most common chief complaint for oropharyngeal squamous cell carcinoma

A
  • presence of a neck mass
  • sore throat
  • dysphagia
21
Q

What often precedes invasive oral SCC

A

malignant changes of oral mucosa

22
Q

Symptoms of head/neck cancer

A
  • pain
  • otalgia
  • dysphagia
  • odynophagia
  • airway obstruction
23
Q

Signs of head/neck cancer

A
  • cervical lymphadenopathy
  • cranial neuropathies
  • decreased tongue mobility
  • fistuals
  • skin involvement
24
Q

Most common site of laryngeal cancer

A

glottis (true vocal cords)

25
Q

Cancer where spreads to the lymph nodes early

A

supraglottis (epiglottis, false vocal cords)

26
Q

Granular leukoplakia

A

small leukoplakic lesion with rough, granular surface on the posterior lateral border of the tongue

27
Q

What does biopsy reveal in granular leukoplakia

A

early invasive squamous cell carcinoma

28
Q

Size of stage I OC-SSCs

A

less than 2 cm

29
Q

Size of stage II cancers

A

2-4 cm

30
Q

Imaging for head and neck lesions

A
  • contrast/noncontrast CT of head and neck

- additional scans to asses lesions and stage cancer

31
Q

Major determinant of survival from head and neck lesions

A

HPV status of the tumor