Destructive Fibrosarcoma of the Maxillary Sinus

Area of Science:

• Oncology
• Otorhinolaryngology

Background:

• Paranasal fibrosarcoma is an exceptionally rare malignant tumor affecting the nasal cavity and sinuses.
• Commonly presents with symptoms like nasal obstruction and epistaxis.

Observation:

• A 55-year-old male presented with a 2-year history of nasal obstruction and epistaxis.
• Imaging revealed a soft tissue mass in the right maxillary sinus obstructing the nasal passage, with erosion into the orbital floor and maxillary sinus walls.
• Initial biopsy suggested papilloma, but subsequent pathological diagnosis confirmed fibrosarcoma.

Findings:

• The tumor originated from the right maxillary sinus, causing significant nasal obstruction and epistaxis.
• The lesion demonstrated contrast enhancement on MRI and extensive local invasion.
• Surgical excision via the Denker approach was performed due to tumor erosion.

Implications:

• This case highlights the importance of thorough pathological examination for accurate diagnosis of sinonasal masses.
• Multimodal treatment including surgery and radiotherapy is crucial for managing paranasal fibrosarcoma.
• Understanding the clinical presentation and treatment principles is vital for rare sinonasal malignancies.