Conclusion:
It was a rare case of sinonasal sarcoma of aggressive nature that was
completely occupying nasal cavity and paranasal sinuses with bony
erosions. CT scan and MRI was suggesting a highly aggressive mass with
intracranial extension (extrdural). The mass was also abutting the
internal carotid artery with its 90% circumference and was labelled as
an unresectable mass and patient was referred for radiotherapy.