MCQs in Oral Pathology

Chapter 11: Odontogenic Tumors

 

 

1-Which of the following conditions appears radiographically as a radiolucent lesion:

  1. Periapical granuloma
  2. Odontogenic myxoma
  3. Odontogenic keratocyst
  4. Ameloblastoma
  5. All the above

 

 

 

 

 

 

The answer is: E

 

2-While assessing a panoramic xray, you find an asymptomatic multilocular radiolucency at the body of the mandible in young adult patient. This could be all the following, EXCEPT:

  1. Ameloblastoma
  2. Calcifying epithelial odontogenic tumor
  3. Odontogenic keratocyst
  4. Complex odontoma
  5. Odontogenic myxoma

 

 

 

 

 

 

The answer is: D

 

3-Recurrences are least likely seen in which of the following conditions:

  1. Ameloblastic fibroma
  2. Ameloblastoma
  3. Chondrosarcoma
  4. Odontogenic keratocyst
  5. Odontogenic myxoma

 

 

 

 

 

 

The answer is: A

 

4-Ameloblastic fibroma usually presents in which age groups:

  1. Under 20 years
  2. Between 20 and 40 years
  3. Between 40 and 60 years
  4. Over 60 years

 

 

 

 

 

 

 

The answer is: A

 

5-Which of the following conditions have high recurrences rate after curettage:

  1. Dentigerous cyst
  2. Adenomatoid odontogenic tumor
  3. Nasopalatine duct cyst
  4. Complex odontoma
  5. Cystic ameloblastoma

 

 

 

 

 

 

The answer is: E

 

6-Which of the following is defined as a clinically benign but aggressive neoplasm of the jaw is composed of epithelium that microscopically mimics enamel organ:

  1. Ossifying fibroma
  2. Odontoma
  3. Ameloblastoma
  4. Hyperparathyroidism
  5. Odontogenic myxoma

 

 

 

 

 

 

 

The answer is: C

 

7-Which of the following lesions is typically seen at the apices of vital anterior mandibular teeth in middle-aged females:

  1. Multiple myeloma
  2. Periapical granuloma
  3. Traumatic bone cyst
  4. Cementoblastoma
  5. Periapical cemento-osseous dysplasia

 

 

 

 

 

 

The answer is: E

 

8-Which of the following conditions is not known to metastasise from the jaws:

  1. Calcifying epithelial odontogenic tumor
  2. Ameloblastoma
  3. Osteosarcoma
  4. Ewing's tumor
  5. Chondrosarcoma

 

 

 

 

 

 

The answer is: A

 

9-Which of the following conditions usually presents in teenagers, in the anterior segment of the jaws:

  1. Odontogenic myxoma
  2. Ameloblastoma
  3. Periapical cemento-osseous dysplasia
  4. Adenomatoid odontogenic tumor
  5. Ameloblastic fibro-odontoma

 

 

 

 

 

 

 

The answer is: D

 

10-While assessing a panoramic xray, you find an asymptomatic 0.5 cm radiolucent lesion at the apex of tooth no. #45 in you adult female patient. The pulp tested vital. This lesion is most likely which of the following:

  1. Condensing osteitis
  2. Periapical granuloma
  3. Periapical scar
  4. Focal sclerosing osteitis
  5. Periapical cemento-osseous dysplasia

 

 

 

 

 

 

 

The answer is: E

 

11-Which of the following neoplasms microscopically mimics enamel organ:

  1. Periapical cemento-osseous dysplasia
  2. Odontoma
  3. Ameloblastoma
  4. Ameloblastic fibroma
  5. Odontogenic myxoma

 

 

 

 

 

 

The answer is: C

 

12-Which of the following conditions predominantly appears in teenagers in the anterior segment of the jaws:

  1. Odontogenic myxoma
  2. Ameloblastoma
  3. Periapical cemento-osseous dysplasia
  4. Adenomatoid odontogenic tumor
  5. Calcifying epithelial odontogenic tumor

 

 

 

 

 

 

The answer is: D

 

13-Which of the following conditions is least likely to appear in the molar-ramus area of the mandible:

  1. Ameloblastoma
  2. Ameloblastic fibroma
  3. Adenomatoid odontogenic tumor
  4. Myxoma
  5. Calcifying epithelial odontogenic tumor

 

 

 

 

 

 

The answer is: C

 

14-Opaque foci can be seen on xrays of all the following conditions EXCEPT:

  1. Calcifying epithelial odontogenic tumor
  2. Calcifying odontogenic cyst
  3. Adenomatoid odontogenic tumor
  4. Ameloblastoma
  5. Cementifying fibroma

 

 

 

 

 

 

The answer is: D

 

15-The best way to reduce the number of deaths due to oral cancer is:

  1. Take fewer dental radiographs
  2. Relieve all mucosal irritating aspects of dentures
  3. Early detection through oral examination
  4. Cytology screening of dental patients
  5. Laser surgery

 

 

 

 

 

 

The answer is: C

 

16- A patient shows a radiolucent area surrounding the apices of mandibular anterior teeth which are vital. The most probable diagnosis is:

 

  1. Periapical granuloma
  2. Cementoblastoma
  3. Radicular cyst
  4. Chronic Abscess

 

 

 

 

 

 

The answer is: B

 

17- Marked reduction in amount of dentin, widening of predentin layer, presence of large areas of interglobular dentin and irregular pattern of dentin is seen in:

 

  1. Hypocalcified dentin
  2. Odonto dysplasia
  3. Dentin dysplasia
  4. Dentinogenesis Imperfecta

 

 

 

 

 

 

The answer is: B

 

18-A young child presents with a painless, well-defined 1 to 3 cm radiolucent lesion with radiopaque foci in the posterior. Which of the following should be included in a differential diagnosis:

  1. Ameloblastic fibro-odontoma
  2. Paget's disease
  3. Dentigerous cyst
  4. Ameloblastoma
  5. Langerhans cell disease

 

 

 

 

 

 

The answer is: A

 

19-A condition that affects young children and is a highly malignant bone tumor, and most likely to be of a neuroectodermal origin is:

  1. Osteoblastoma
  2. Multiple myeloma
  3. Ameloblastoma
  4. Brown tumor
  5. Ewing's tumor

 

 

 

 

 

 

The answer is: E

 

20-A young teenage male patient comes to your clinic complaining of numb lower lip and pain in the right posterior mandible. A radiograph shows slight thickening of the periodontal membrane space of tooth #46. The tooth shows slightly reduced vitality to electric pulp testing. Which of the following should be included in a differential diagnosis:

  1. Periapical cyst
  2. Periapical granuloma
  3. Traumatic bone cyst
  4. Benign odontogenic neoplasm
  5. Malignancy

 

 

 

 

 

 

The answer is: E

 

21-Which of the following conditions replaces and is attached to the apices of teeth:

  1. Periapical granuloma
  2. Periapical cemento-osseous dysplasia
  3. Traumatic bone cyst
  4. Cementoblastoma
  5. Paget's disease

 

 

 

 

 

 

The answer is: D

 

22-Which of the following benign tumors has been shown to rarely metastasize to the lungs:

  1. Osteoblastoma
  2. Ameloblastoma
  3. Odontogenic myxoma
  4. Cementoblastoma
  5. Ossifying fibroma

 

 

 

 

 

 

 

The answer is: B

 

23-All the following is most likely to present in teens and young adults EXCEPT:

  1. Traumatic bone cyst
  2. Central giant cell granuloma
  3. Fibrous dysplasia
  4. Paget's disease
  5. Garre's osteomyelitis

 

 

 

 

 

 

 

The answer is: D

 

24-A 43-year-old patient developed an asymptomatic 2 to 4 cm enlargement in the molar-ramus area. The lesion was well defined, radiolucent, multilocular, and associated with an impacted tooth. She had no symptoms. Differential diagnosis could include all the following EXCEPT:

  1. Ameloblastoma
  2. Calcifying epithelial odontogenic tumor
  3. Dentigerous cyst
  4. Odontogenic myxoma
  5. Adenomatoid odontogenic tumor

 

 

 

 

 

 

The answer is: E

 

25-A circumscribed odontogenic tumor composed of myxofibrous connective tissue with abundant islands of odontogenic epithelium resembling dental lamina would be designated as:

  1. Ameloblastoma
  2. Ameloblastic fibroma
  3. Odontogenic myxoma
  4. Complex odontoma
  5. Adenomatoid odontogenic tumor

 

 

 

 

 

 

The answer is: B

 

26-All of the following characteristically occur in patients under the age of 20 years EXCEPT:

  1. Traumatic bone cyst
  2. Adenomatoid odontogenic tumor
  3. Ameloblastic fibroma
  4. Compound odontoma
  5. Ameloblastoma

 

 

 

 

 

 

The answer is: E

 

27-Which of the following rarely if ever recurs:

  1. Calcifying odontogenic cyst
  2. Ameloblastoma
  3. Odontogenic myxoma
  4. Odontogenic keratocyst
  5. Adenomatoid odontogenic tumor

 

 

 

 

 

 

 

The answer is: E

 

28-A radiolucent odontogenic tumor was composed completely of loose connective tissue. It had an appearance that had some resemblance to dental pulp. This is a(n):

  1. Ameloblastoma
  2. Ameloblastic fibroma
  3. Odontogenic myxoma
  4. Complex odontoma
  5. Adenomatoid odontogenic tumor

 

 

 

 

 

 

The answer is: C

 

29-A mixed lucent and opaque radiographic pattern may be seen with all the following jaw lesions EXCEPT:

  1. Adenomatoid odontogenic tumor
  2. Chronic osteomyelitis
  3. Periapical cemento-osseous dysplasia
  4. Calcifying epithelial odontogenic tumor
  5. Ameloblastic fibroma

 

 

 

 

 

 

The answer is: E

 

30-Which of the following characteristically presents in teenagers in the posterior segment of the jaws:

  1. Odontogenic myxoma
  2. Ameloblastoma
  3. Periapical cemento-osseous dysplasia
  4. Ameloblastic fibro-odontoma
  5. Calcifying epithelial odontogenic tumor

 

 

 

 

 

 

The answer is: D

 

31-A mixed lucent and opaque radiographic pattern may be seen with all of the following jaw lesions EXCEPT:

  1. Ossifying fibroma
  2. Odontogenic myxoma
  3. Periapical cemento-osseous dysplasia
  4. Cementifying fibroma
  5. Calcifying odontogenic cyst

 

 

 

 

 

 

The answer is: B

 

32-liesegang rings type of calcification is found in:

 

  1. Adenomatoid Odontogenic tumor
  2. Ossifying fibroid epulis
  3. Central Odontogenic fibroma
  4. Calcifying epithelial odontogenic tumor

 

 

 

 

 

 

The answer is: D