Sinonasal undifferentiated carcinoma, or schneiderian carcinoma arising from an aspergillosis: a case history.

The sinonasal undifferentiated carcinoma or schneiderian carcinoma is a rare, malignant, aggressive tumour of the maxillary sinuses with an unknown aetiology. Its site and clinical symptoms can simulate chronic sinusitis, and radiographs suggest severe osteonecrotic-type destruction. Only histological and cellular investigations can confirm the diagnosis. We describe a 62-year-old woman with no previous medical or surgical history who presented with unilateral dental pain and chronic sinusitis. She was diagnosed with sinonasal carcinoma and had a hemimaxillectomy and radiotherapy.