Sinonasal inflammatory myofibroblastic tumour: a rare entity with diagnostic challenges.

Inflammatory myofibroblastic tumour is a rare entity causing sinonasal involvement with variable behaviour. Mimicking various benign and malignant lesions, accurate diagnosis is often clinched on histopathology complemented with appropriate immunohistochemistry markers. Surgical resection is the main treatment modality with other forms of therapy reserved for unresectable lesions. We highlight a case of dual involvement of the sinonasal region and nasal bones along with the diagnostic and treatment challenges encountered. As the nasal bones were involved, surgical resection with negative margins required cosmetic reconstruction in the same sitting. A costochondral graft helped in achieving cosmetic pleasing results with no recurrence on follow-up.