Fibroinflammatory pseudotumor of the temporal bone

Area of Science:

• Neuroscience
• Oncology
• Otolaryngology

Background:

• Chronic inflammatory tumor-like lesions of the temporal bone pose significant challenges for skull base surgeons.
• These osteolytic lesions can compromise vital structures and are often refractory to surgical management alone.

Observation:

• Four cases of fibroinflammatory pseudotumor of the temporal bone were treated with a combined skull base surgery and chemotherapy approach.
• Three patients experienced hearing loss and underwent multiple surgical interventions.
• One patient succumbed to the condition, likely due to internal carotid artery erosion.

Findings:

• Complete cessation of the chronic and recurrent inflammatory process was achieved through petrosectomy followed by antiproliferative chemotherapy.
• Two patients successfully received cochlear implants post-treatment.
• The study discusses differential diagnosis, diagnostic modalities, and surgical options for this rare disease.

Implications:

• A multimodal strategy combining surgery and chemotherapy is crucial for managing aggressive temporal bone fibroinflammatory pseudotumors.
• This approach can halt disease progression and improve outcomes, including hearing restoration with cochlear implantation.
• Further research into optimal diagnostic and therapeutic protocols for this rare condition is warranted.