Korean J Otolaryngol-Head Neck Surg.  2005 Mar;48(3):414-417.

A Case of Post-Traumatic Pseudomeningocele Presenting as a Cyst of External Auditory Canal

• Jeong JH
• Ahn SK
• Jeon SY
• Park IS

Abstract

Pseudomeningoceles are formed by extravasation of cerebrospinal fluid through a dural defect into soft tissue. Although post-traumatic pseudomeningocele rarely occurs in the head and neck, this case demonstrates a traumatic pseudomeningocele in an adult. A 32-year old woman presented a ten-year history of right ear stuffiness and muffled hearing after the head trauma. A soft, nonpulsatile and cystic mass was noted in the right external auditory canal. The MRI scan demonstrated the connection between subarachnoid space and cyst of the right external auditory canal. The right ear was explored and mastoid antrum was partiallyfilled with a cyst connected to the dural defect. The extradural portion of the mass was removed, and the dural defect was repaired with a temporalis fascia-cartilage graft. We report a case of the post-traumatic pseudomeningocle presenting as a cyst of the external auditory canal with a review of the related literature.

Keyword

Meningocele; External auditory canal; Cyst

MeSH Terms

Adult
Cerebrospinal Fluid
Craniocerebral Trauma
Ear
Ear Canal*
Female
Head
Hearing
Humans
Magnetic Resonance Imaging
Mastoid
Meningocele
Neck
Subarachnoid Space
Transplants