MacEwen’s triangle can be felt through the:

MacEwen’s triangle can be felt through the:

1.Supreior conchae
2.Cymba conchae
3.Middle conchae
4.Posterior part of auricle

sol:

Mac Ewen’s (Suprameatal) Triangle:

Boundaries of the triangle are:

a. Anteriorly: posterosuperior border of the bony external auditory canal along with the spine of Henle.

b. Posteriorly: a vertical line drawn tangential to the posterior margin of the external, canal.

c. Superiorly: the supramastoid crest.

d. Mac Ewen’s (Suprameatal) Triangle is important landmark for mastoid antrum, which lies 12-15 mm deep from the surface, 15 mm lateral to the mastoid antrum.

e. It is palpated through Cymba conchae