Bening Tumors Of Oral Cavity

Question 1

Where are the cells in junctional nevus?

Answer 1

Limited to basal layer (Early stage)

Question 2

Where are nevus cells in compound nevus?

Answer 2

In epidermis and dermis

Question 3

Which nevus shows dropping off effect?

Answer 3

Junctional nevus

Question 4

Where is keratoacanthoma most likely situated?

Answer 4

Vermilion border of lips (sun-exposed skin)

Question 5

Which HPV types are associated with squamous papilloma?

Answer 5

6 and 11

Question 6

Which syndrome shows teleangiectasia, epistaxis and family history?

Answer 6

Oslu-Weber-Rendu Syndrome

Question 7

Which nevi is clinically benign but histologically malignant?

Answer 7

Spitz nevi

Question 8

What gene and chromosome are activated in aneurysmal bone cyst?

Answer 8

USP6 Gene, Chromosome 17p13

Question 9

3 features of Sturge-Weber-Syndrome

Answer 9

Unilateral vascular lesion on soft palate
Calcifications in skull film
Port-wine stain on face

Question 10

What bening lesion usually occurs in young person and causes severe pain which can be relieved with aspirin?

Answer 10

Osteoid osteoma

Question 11

What % of population show torus palatinus in maxilla?

Answer 11

20%

Question 12

Which lesion show sunburst appearance and hair-on-end trabeculae radiographically?

Answer 12

Osteosarcoma

Question 13

Which lesions show positive garrington’s sign? (Thickening of periodontal ligament)

Answer 13

Osteosarcoma
Scleroderma
Osteochondroma

Question 14

Which painless swelling of the jaw, often seen in anterior portion of maxilla, is resistant to xray radiation?

Answer 14

Chondroma

Question 15

Which lesion shows pebbly, vesicle like appearance on tongue?

Answer 15

Lymphangioma

Question 16

Most common nevi intraorally?

Answer 16

Intramucosal nevi

Question 17

Most common benign tumor in oral cavity

Answer 17

Fibroma

Question 18

Diagnostic characteristic of peripheral giant cell granuloma

Answer 18

Multinuclear giant cells

Question 19

Which common gingival lesion shows bone radiographically and microscopially?

Answer 19

Peripheral ossifying fibroma

Question 20

Which syndrome is associated with multiple squamous papillomatous growths?

Answer 20

Cowden Syndrome

Question 21

Most common sinus affected by osteoma?

Answer 21

Frontal sinus

Question 22

Which lesion shows growth, stationary and involution phases?

Answer 22

Keratoacanthoma

Question 23

In which lesion are hemosiderin particles found?

Answer 23

Peripheral giant cell granuloma