A Case of Huge Solitary Fibrous Tumor with Maxillary Sinus Wall Destruction Masquerading as Maxillary Sinus Cancer

Author: Soojeong CHOI ¹ ; Kijeong LEE ; Jaehyun SHIM ; Sang Hag LEE
Author Information

1. Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Korea University, Seoul, Korea
Publication Type:Case Report
From:Korean Journal of Otolaryngology - Head and Neck Surgery 2020;63(12):606-610
CountryRepublic of Korea
Language:Korean
Abstract: Solitary fibrous tumors (SFT) are rare fibroblastic mesenchymal neoplasms which are originally described as neoplasms of the pleura originating from the spindle cells. Although it can originate from extrapleural sites including the head and neck, it is exceedingly rare in the sinonasal tract. There has been no reported cases of SFT involving the paranasal sinuses in Korea; however, there was case of a 34-year-old man who presented with persistent left nasal obstruction and watering of the left eye. Imaging by CT and MRI revealed a large, highly vascular tumor occupying the maxilloethmoidal sinus cavities associated with bony wall destruction, masquerading as maxillary sinus cancer. The tumor mass occupying sinus cavities was removed through endoscopic and Caldwell-Luc approach. Histopathological examination of the tumor was consistent with SFT. We report this case to further insights regarding the diagnosis and management of this rare tumor.