Tympanic membrane perforations secondary to ventilation devices: special considerations

Area of Science:

• Otolaryngology
• Surgical Pathology

Background:

• Ventilation devices can rarely cause tympanic membrane perforations.
• Persistent perforations necessitate evaluation for squamous epithelial ingrowth onto the tympanic membrane's undersurface.

Observation:

• Squamous epithelial growth through persistent perforations poses a surgical challenge.
• Ingrowth may extend into the mastoid, requiring more extensive surgical exposure.

Findings:

• Tympanic membrane grafting is effective for early-stage ingrowth.
• Complete excision of affected tympanic membrane tissue is vital for successful grafting.

Implications:

• Prompt surgical management is indicated for persistent perforations with epithelial ingrowth.
• Surgical techniques must address the extent of squamous tissue involvement, including mastoid extension.