Saturday, April 24, 2010

301-310 MCQ in Facial Plastic and Reconstructive Surgery

301-310

301) The arrow indicates a third molar tooth in an adult mandible. According to the UNIVERSAL NUMBER SYSTEM (ADA) this tooth is number: Click the picture to enlarge image.
A. 1
B. 9
C. 16
D. 17
E. 32

302) A 6 year-old patient is complaining of ear pain 10 hours after the otoplasty surgery. What is the MOST likely diagnosis?

A. Skin necrosis
B. Herpes infection
C. Hematoma
D. Would dehiscence
E. Granuloma formation

303) A mandibular symphysis fracture is usually associated with:

A. Coronoid fracture
B. Condyle fracture
C. Ramus fracture
D. Angle
E. Body

304) Which of the following statements IS FALSE regarding Tension Band Principles applied to a mandibular fracture (dentulous area)?

A. A tension band must overcome the distracting forces at the alveolar border.
B. An arch bar can be used as a tension band.
C. Ivy loops are a good alternative to a tension band.
D. Bicortical fixation plates are ideal as a tension band.
E. A miniplate can be used as a tension band in any mandibular fracture.

305) Which of the following statements regarding mandibular fractures is TRUE?

A. Lag screws are contraindicated in a symphysis fracture.
B. A dynamic compression plate (DCP) is adequate for the treatment of a symphysis fracture.
C. Almost all fractures of the angle are unfavorable.
D. Rigid Fixation of the mandible involves the use of arch bars with inderdental wiring fixation.
E. The use of eccentric dynamic compression plates (EDCP) will not obviate the need for a tension band.

306) Which of the following statements is TRUE in cutaneous malignancies?

A. Squamous cell carcinoma is the most common type of skin cancer.
B. Actinic keratosis is the most common precursor of squamous cell carcinoma.
C. Nodular basal cell carcinoma has ill-defined borders which can not be detected clinically.
D. Cystic basal cell carcinoma has a tendency to spread at embryonic fusion planes.
E. 5-fluorouracil cream is the ideal management for basal cell carcinomas with well defined borders and less than 1 cm in diameter.

307) Which of the following treatments for actinic keratosis is INCORRECT?

A. Superficial shave excision
B. Cryotherapy
C. Trichloracetic acid peeling
D. 5-fluorouracil
E. Radiation therapy

308) Which of the following statements regarding nasal reconstruction is TRUE?

A. Placement of incisions for local flaps across aesthetic units maximizes the cosmetic result.
B. There are eight aesthetic units in the nose.
C. The lobule has thick sebaceous skin.
D. The skin of the dorsum is more thick and sebaceous than that of the lobule.
E. The structural support of the ala is provided by the lower lateral cartilages.

309) A patient has a partial thickness defect of approximately 12 mm in the right nasal ala after Mohs' microsurgery for a basal cell carcinoma. The patient has thin nasal skin with poor laxity. Which of the following reconstructive techniques is the BEST in this particular case?

A. Secondary intention
B. Full thickness skin graft
C. Full thickness skin graft after granulation tissue is formed in the surgical bed
D. Nasolabial flap
E. Bilobed Flap

310) Which of the following statements is TRUE about external nasal subunits?

A. Any subunit defect greater than 30% should be enlarged to occupy the entire subunit.
B. The ala refers to the skin and soft tissue overlying the lateral crura of the lower lateral cartilages.
C. The tip-defining point indicates the base of the soft triangle of the nose.
D. The lobule is covered by thin sebaceous skin.
E. The sill comprises the most posterior aspect of the nostril rim.




ANSWERS & REFERENCES



301) D     17


Best J.A., Lewis J.S.: Management Dentoalveolar Injuries in the Facial Trauma Patient, in Facial Trauma: Primary and Secondary Repair, Otolaryngologic Clinics of North America, Saunders, Vol. 6, Number 4, p. 432, 1998

302) C     Hematoma

Nachlas N.E: Otoplasty in chapter 34, Facial Plastic and Reconstructive Surgery, Thieme Medical Publishers, Third edition (Ira Papel, editor) pp. 421-433, 2009

http://emedicine.medscape.com/article/1290275-treatment

303) B     Condyle fracture

Garza J. R.: Mandibular Fractures, Chapter 61 in Facial Plastic and Reconstructive Surgery, Thieme, Second Edition, pp. 776-777, 2002

Garza J. R.: Mandibular Fractures, Chapter 72 in Facial Plastic and Reconstructive Surgery, Thieme, Third Edition, pp. 1001-1015, 2009

304) D     Bicortical fixation plates are ideal as a tension band.

Garza J. R.: Mandibular Fractures, Chapter 61 in Facial Plastic and Reconstructive Surgery, Thieme, Second Edition, pp. 776-777, 2002

Garza J. R.: Mandibular Fractures, Chapter 72 in Facial Plastic and Reconstructive Surgery, Thieme, Third Edition, pp. 1001-1015, 2009

305) C     Almost all fractures of the angle are unfavorable.

Garza J. R.: Mandibular Fractures, Chapter 61 in Facial Plastic and Reconstructive Surgery, Thieme, Second Edition, pp. 776-777, 2002

Garza J. R.: Mandibular Fractures, Chapter 72 in Facial Plastic and Reconstructive Surgery, Thieme, Edition, pp. 1001-1015, 2009

306) B     Actinic keratosis is the most common precursor of squamous cell carcinoma.

Hendrix J. D., Slingluff C. L.: Cutaneous Malignancies: Diagnosis and Treatment in Chapter 42 in Facial Plastic and Reconstructive Surgery, (Papel, editor) Thieme, Second Edition, pp.485-493, 2002


Hendrix J. D., Slingluff C. L.: Cutaneous Malignancies: Diagnosis and Treatment in Chapter 52 in Facial Plastic and Reconstructive Surgery, (Papel, editor) Thieme, Third Edition, pp. 675-702, 2009

307) E     Radiation therapy

Stucker J. F., Nathan C.O., Lian T. S.: Cutaneous Malignancy, Chapter 103, Head and Neck Surgery-Otolaryngology (Bailey), Third Edition, Lippincott Williams & Wilkins, 2001, pp. 1226-1227

Stucker J. F., Nathan C.O., Lian T. S.: Cutaneous Malignancy, Chapter 105, Head and Neck Surgery-Otolaryngology (Bailey), 4th Edition, Lippincott Williams & Wilkins, 2006, pp. 1455-1468

308) C     The lobule has thick sebaceous skin.

Baker Shan: Major Nasal Reconstruction, Chapter 49 in Facial Plastic and Reconstructive Surgery, (Papel, editor) Thieme, Second Edition, p.p. 601-602, 2002

Baker Shan: Major Nasal Reconstruction, Chapter 59 in Facial Plastic and Reconstructive Surgery, (Papel, editor) Thieme, Third Edition, p.p. 807-820, 2009

309) D     Nasolabial flap

Leach J.: Reconstruction of Nasal Tissue Deficits, A Self-Instructional Package, American Academy of Otolaryngology-Head and Neck Surgery Foundation, Inc., 1998, pp.45-47

Baker Shan: Major Nasal Reconstruction, Chapter 49 in Facial Plastic and Reconstructive Surgery, (Papel, editor) Thieme, Second Edition, p.p. 601-602, 2002

Baker Shan: Major Nasal Reconstruction, Chapter 59 in Facial Plastic and Reconstructive Surgery, (Papel, editor) Thieme, Third Edition, p.p. 807-820, 2009

310) E     The sill comprises the most posterior aspect of the nostril rim.

Leach J.: Reconstruction of Nasal Tissue Deficits, A Self-Instructional Package, American Academy of Otolaryngology-Head and Neck Surgery Foundation, Inc., 1998, pp.19-22

Kim D. W., Mau T.: Surgical Anatomy of the Nose, Chapter 170, Head and Neck Surgery-Otolaryngology (Bailey), 4th Edition, Lippincott Williams & Wilkins, 2006, pp. 2511-2531

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Updated:  June 1, 2017

2 comments:

Perry said...

the answer to question 301 should be 38 in stead of 17.
The 17 is the seventh element (second molar) in the upper right quadrant.

A.Riera/Otolaryngology-HNS said...


Dear reader:

Thank you for your constructive comment.
You are correct, 38 using the FDI System.
Using the Universal system (ADA) is the 17.

The question has been changed to avoid any confusion.

http://www.americantooth.com/downloads/instructions/Dental_Sys_Permanent_Teeth.pdf

Sincerely, ARM