Subperiosteal Mastoid Abscess
Both acute and chronic mastoid diseases may lead to formation of different kinds of abscesses ,as the necrosis of the mastoid bone occurs and pus makes its way out.
- Subperiosteal Abscess:
- Swelling over the mastoid antrum,pinna is pushed outwards,downwards and forwards.
- Bezold abscess – pus breaks through the thin medial side of the tip of the mastoid and presents as a swelling in the upper part of neck.This absess occurs deep to the Sternocleidomastoid muscle.The patient develops torticollis and swelling under the upper part of the sternocleidomastoid.
- Citelli’s abscess (along posterior belly of diagnostic)
- Luc’s abscess(along the posterior wall of the external auditory canal).
- Zygomatic Abscess