31q: commonest site of carcinoma tongue is ?
- ventral aspects
- anterior 2/3 rd lateral aspect
answer: c . anterior 2/3 or middle 1/3 rd .
32q: in the reconstruction following excision or previously irradiated cheek , the flap will be ?
- local tongue
- pectoralis major myocutaneous
answer: d . pectoralis major myocutaneous .
33q: true statements about oral cancer is / are ?
- most common in buccal mucosa
- metastasis is uncommon
- respond to radiotherapy
- surgery done
- syphilis and dental irritation predisposes
answer: b, c , d , e . cancer involving the buccal mucosa is the most common type of oral cancer in
34q: commonest site of carcinoma tongue ?
- lateral borders
- posterior one third
- faucio lingual
answer: b . lateral borders .
35q: which is not true of carcinoma tongue ?
- lateral border involved
- cervical lymph node involvement
- commonly adenocarcinoma
- tobacco chewing is a risk factor
answer: c . carcinoma of tongue is most commonly squamous cell carcinoma and not adenocarcinoma .
the most common sites of squamous cell carcinoma are :
- head and neck tumor
- carcinoma oesophagus
- carcinoma cervix
- carcinoma bladder
36q: trismus in oral cancer patients is severe in those treated with ?
- surgery and radiotherapy
- chemotherapy alone
- surgery alone
- not related to treatment
answer: a . surgery and radiotherapy .
37q: which of the following statements are true about carcinoma tongue ?
- occurs most commonly on the lateral border of the middle third of the tongue
- metastasize readily to cervical lymph nodes
- is usually radiosensitive
- treated surgically – should include homolateral neck dissection except for small lesions
- all of the above
answer: e . all the above statements are true .
38q: a patient with carcinoma tongue is found to have lymph nodes in the lower neck. The treatment of choice for the lymph nodes is ?
- lower cervical neck dissection
- suprahyoid neck dissection
- radical neck dissection
answer: d . radical neck dissection .
39q: an old man who is edentulous developed squamous cell carcinoma in buccal mucosa that has infiltrated to the alveolus . following is not indicated in the treatment ?
- segmental mandibulectomy
- marginal mandibulectomy involving removal of the outer table only
- marginal mandibulectomy involving removal of upper half of mandible
answer: c . in marginal mandibulectomy inner table of the mandible is removed and not the outer table . whenever squamous cell carcinoma of the oral cavity involve the mandible mandibulectomy becomes necessary.
Mandibulectomy is of two types . segmental mandibulectomy and marginal mandibulectomy . marginal mandibulectomy is done when the tumor lies within one centimeter of the mandible or abuts the periosteum without evidence of direct bony invasion . if the tumor is greater than one centimeter and has direct bony invasion , then segmental mandibulectomy is done .
40q: a 80 year old patient presents with a midline tumor of the lower jaw , involving the alveolar margin . he is edentulous . what is the treatment of choice ?
- commando operation
- segmental mandibulectomy
- marginal mandibulectomy
answer: c . segmental mandibulectomy . hemimandibulectomy cannot be done because it is a midline tumor .