Biphenotypic sinonasal sarcoma – Description of radiologic, intraoperative and pathologic findings

Biphenotypic sinonasal sarcomas were initially described in 2012 and introduced to the 4th edition of the World Health Organization (WHO) classification of head and neck tumors as a new disease entity. We present the first comprehensive case description combining radiologic, surgical and pathologic findings of a biphenotypic sinonasal sarcoma in a young patient who presented with nonspecific sinonasal obstructive symptoms, left orbital pain and...