A Pathology Test About Non-odontogenic Tumors

25 Questions | Total Attempts: 632

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A Pathology Test About Non-odontogenic Tumors

Primary intraosseous tumors of non-odontogenic origin arising in children and adolescents include osteoma and osteoblastoma, Langerhans cell histiocytosis, desmoplastic fibroma, inflammatory myofibroblastic tumor, juvenile ossifying fibroma, Ewing sarcoma and osteosarcoma, and primary intraosseous lymphoma.


Questions and Answers
  • 1. 
    An ossifying fibroma is uncommon in the jaws, but if found is in the mandibular premolar/molar area.
    • A. 

      True

    • B. 

      False

  • 2. 
    Fibrous dysplasia separates with ease from normal bone.
    • A. 

      True

    • B. 

      False

  • 3. 
    It can be difficult to distinguish between an ossifying fibroma and fibrous dysplasia.
    • A. 

      True

    • B. 

      False

  • 4. 
    An ossifying fibroma is a fibrous connective tissue stroma in which new bone is formed.
    • A. 

      True

    • B. 

      False

  • 5. 
    An ossifying fibroma looks like ground glass on a radiograph.
    • A. 

      True

    • B. 

      False

  • 6. 
    Fibrous dysplasia is a bilateral slow progressive enlargement of the jaw.
    • A. 

      True

    • B. 

      False

  • 7. 
    Fibrous dysplasia is where normal medullary bone is replaced by an abnormal fibrous connective proliferation in which new non-maturing bone is formed.
    • A. 

      True

    • B. 

      False

  • 8. 
    Fibrous dysplasia shows woven bone instead of mature bone.
    • A. 

      True

    • B. 

      False

  • 9. 
    Malignant transformation is common with fibrous dysplasia.
    • A. 

      True

    • B. 

      False

  • 10. 
    An osteoblastoma is an uncommon painless swelling with lesions in the posterior tooth-bearing areas.
    • A. 

      True

    • B. 

      False

  • 11. 
    An osteoblastoma arises from the surface of a root and is fused to it obliterating the apex of the tooth.
    • A. 

      True

    • B. 

      False

  • 12. 
    On a radiograph an osteoblastoma is a thin radiolucency border around a calcified central tumor mass.
    • A. 

      True

    • B. 

      False

  • 13. 
    Gardner's Syndrome can show multiple impacted permanent and supernumerary teeth and has a high rate of malignant transforation to invasive colorectal carcinoma.
    • A. 

      True

    • B. 

      False

  • 14. 
    Osteomas are removed with surgical excision and have a high rate of recurrence.
    • A. 

      True

    • B. 

      False

  • 15. 
    A patient with Gardner's Syndrome may have fibromas of the skin and epidermal and trichilemmal cysts.
    • A. 

      True

    • B. 

      False

  • 16. 
    The principal diagnostic problem with a Chondroma is to histologically distinguish from a more common chondrosarcoma.
    • A. 

      True

    • B. 

      False

  • 17. 
    A Central Giant Cell Granuloma presents as a solitary radiopaque lesion.
    • A. 

      True

    • B. 

      False

  • 18. 
    A Central Giant Cell Granuloma is a benign proliferation of fibroblasts and multinucleated giant cells and is not commonly found in the jaws.
    • A. 

      True

    • B. 

      False

  • 19. 
    A central giant cell granuloma is usually found in children and young adults before 30 years of age.
    • A. 

      True

    • B. 

      False

  • 20. 
    A Central Giant Cell Granuloma is usually found in females anterior to the permanent molar teeth.
    • A. 

      True

    • B. 

      False

  • 21. 
    A Central Giant Cell Granuloma is a painful expansion of the affected jaw where the cortical plates are thinned.
    • A. 

      True

    • B. 

      False

  • 22. 
    A patient with Central Giant Cell Granuloma must get their levels of parathyroid hormone checked because if elevated then they have primary hyperparathyroidism.
    • A. 

      True

    • B. 

      False

  • 23. 
    A Hemangioma of bone is usually found in the posterior mandible of females.
    • A. 

      True

    • B. 

      False

  • 24. 
    A Hemangioma of bone has a soap bubble appearance on a radiograph.
    • A. 

      True

    • B. 

      False

  • 25. 
    Coronoid Hyperplasia is usually bilateral.
    • A. 

      True

    • B. 

      False

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