[Possible ectopic cerebral tissue in the middle ear--a case report]

Area of Science:

• Otolaryngology
• Neurosurgery
• Pathology

Background:

• Chronic otitis media can present with unusual complications.
• Ectopic brain tissue is a rare finding in the middle ear, potentially misdiagnosed.
• Accurate diagnosis is crucial for appropriate surgical management.

Observation:

• A 58-year-old woman presented with chronic otitis media and suspected ectopic cerebral tissue.
• A 6 x 2 mm ectopic brain mass was identified in the aditus ad antrum and epitympanum.
• Discontinuity between the ectopic mass and intracranial brain tissue was confirmed before removal.

Findings:

• Histopathological examination revealed the ectopic mass contained middle ear mucosal mucous glands.
• An exposed dura mater area was noted, but without perforation or cerebrospinal fluid leakage.
• The patient experienced no post-operative complications during one year of follow-up.

Implications:

• Surgical removal of ectopic brain tissue in chronic otitis media can be safe and effective.
• This case underscores the need for vigilance in diagnosing and managing complex middle ear conditions.
• Successful intervention resulted in a significant hearing improvement, demonstrating positive patient outcomes.