Which type of mastoidectomy removes air cells using a small burr ...

[chandani]

Which type of mastoidectomy removes air cells using a small burr by opening the mastoid process behind the ear?
 
  a. Simple mastoidectomy
  b. Modified radical mastoidectomy
  c. Radical mastoidectomy
  d. Simple mastectomy

Question 2

Which type of tympanoplasty is a closure of a perforated tympanic membrane with erosion of the malleus?
 
  a. Type I
  b. Type II
  c. Type III
  d. Type IV

[allisonblackmore]

Answer to Question 1

ANS: A
By opening the mastoid process behind the ear, air cells are removed by drilling through bone with small burrs, without involving the middle ear or external canal.

Answer to Question 2

ANS: B
A type II tympanoplasty is a closure of the perforated tympanic membrane with erosion of the malleus. The graft used is placed against the incus or remains on the malleus.

[chandani]

Thanks for the timely response, appreciate it

[xthemafja]

TYSM