Solitary neurofibroma: a rare occurrence on gingiva

Self-Instruction Exercise No. 385
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Exercise No. 385
Subject Code: 734
Diagnosis & Treatment Planning

The 15 questions for this exercise are based on the article, Solitary neurofibroma: a rare occurrence on gingiva, on pages 28-31. This exercise was developed by Anthony S. Carroccia, DDS, MAGD, ABGD, in association with the General Dentistry Self-Instruction Committee.

Reading the article and successfully completing the exercise will enable you to:

  • understand the appearance of neurofibromas;
  • know the treatment and outcomes for neurofibromas; and
  • consider neurofibroma in your differential diagnoses.

Answers for this exercise must be received by April 30, 2017.
  1. Which type of cells did the histologic specimen resemble?

    A. Mauthner
    B. Reed/Sternberg
    C. Schwann
    D. Tzanck

  2. Neurofibromas are benign neoplasms with fast-growing nerve sheaths. They have a homogenous neoplastic origin.

    A. Both statements are true.
    B. The first statement is true; the second is false.
    C. The first statement is false; the second is true.
    D. Both statements are false.

  3. All of the following are classifications of neurofibroma except one. Which is the exception?

    A. complex
    B. multiple
    C. plexiform
    D. solitary

  4. The disease known as von Recklinghausen neurofibromatosis is characterized by multiple neurofibromas. Multiple neurofibromas are a component of multiple endocrine neoplasia type 1.

    A. Both statements are true.
    B. The first statement is true; the second is false.
    C. The first statement is false; the second is true.
    D. Both statements are false.

  5. Plexiform tumors are the most common neurofibromas in young adults. Occurrence on the gingiva is rare.

    A. Both statements are true.
    B. The first statement is true; the second is false.
    C. The first statement is false; the second is true.
    D. Both statements are false.

  6. Radiographically, a neurofibroma within the posterior mandible would appear _________.

    A. as a unilocular or multilocular radiolucency
    B. as an ill- or well-defined radiopacity
    C. with mixed radiolucent and radiopaque features
    D. normal

  7. All of the following lesions were included in the provisional or differential diagnosis except one. Which is the exception?

    A. irritation fibroma
    B. peripheral giant cell granuloma
    C. pyogenic granuloma
    D. odontogenic myxoma

  8. All of the following methods were employed for hemostasis except one. Which is the exception?

    A. digital pressure
    B. electrosurgery
    C. gelatin-based foam
    D. tranexamic acid rinse

  9. Which medium was used for storage and transport of the specimen?

    A. acetyl aldehyde
    B. formalin
    C. isopropyl alcohol
    D. saline

  10. Which type of stain was used for light microscopic examination?

    A. alazin and iodine
    B. fuschin and safranine
    C. hematoxylin and eosin
    D. tropaeolin and celestine blue

  11. Which of the following is a malignant type of nerve tumor?

    A. neurofibroma
    B. neurogenic sarcoma
    C. traumatic neuroma
    D. schwannoma

  12. How many types of multiple endocrine neoplasia syndrome are there?

    A. 2
    B. 3
    C. 4
    D. 5

  13. Which of the following best describes the cause of solitary neurofibromas?

    A. age-related
    B. bacterial
    C. idiopathic
    D. viral

  14. What is the treatment of choice for neurofibromas?

    A. complete excision
    B. cryotherapy
    C. marsupialization
    D. punch biopsy excision

  15. Which of the following is a histopathologic microscopic finding of neurofibroma?

    A. independent fascicles
    B. myelin cells
    C. mottled cells
    D. neurite projections

Evaluation
Please respond to the statements below, using the following scale:
1 Poor; 2 Below average; 3 Average; 4 Above average; 5 Excellent
Practicality of the content 1 2 3 4 5
Benefit to your clinical practice 1 2 3 4 5
Quality of illustrations 1 2 3 4 5
Clarity of objectives 1 2 3 4 5
Clarity of exercise questions 1 2 3 4 5
Relevance of exercise questions 1 2 3 4 5
 
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Did this article present new information? Yes No
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