Resection Via Transpalatal Approach of Huge Solitary Fibrous Tumor Involving Pterygopalatine Fossa
10.3342/kjorl-hns.2021.00808
- Author:
Jang Wook GWAK
1
;
Sea Eun YI
;
Yeong Ju LEE
;
Myeong Sang YU
Author Information
1. Department of Otorhinolaryngology-Head and Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- Publication Type:Case Report
- From:Korean Journal of Otolaryngology - Head and Neck Surgery
2023;66(1):44-49
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Solitary fibrous tumors (SFTs) are spindle-cell tumors that rarely arise within extrathoracic area. Massive SFTs involving the pterygopalatine fossa are extremely rare and surgical excision represents a multidisciplinary surgical challenge. We present a case of 64-year-old female with a huge mass originating from the pterygopalatine fossa invading the skull base. Distinct microscopic findings and a positive nuclear staining of signal transducer and activator of transcription 6 (STAT-6) pathologically confirmed SFT. The right internal maxillary artery branch was embolized preoperatively and a surgical excision was performed through a combined technique of transpalatal, mid-facial degloving and endoscopic approach. Postoperative radiotherapy successfully removed the remnant tumor adjacent to the carvenous sinus. Follow- up MR images showed no evidence of recurrence for two years. To our knowledge, there has been no previous report of the successful treatment of this vast extent of SFT in the pterygopalatine region via endoscopic-external-combined approach and radiotherapy.
