Ivonne A. Montes-Mojarro - Surgical Pathology Department, The American British Cowdray Medical Center, Mexico city ۰۱۱۲۰, Mexico
Javier Baquera-Heredia - Surgical Pathology Department, The American British Cowdray Medical Center, Mexico city ۰۱۱۲۰, Mexico
Juan Felipe Sanchez-Marle - Head and Neck Surgery Department, The American British Cowdray Medical Center, Mexico city ۰۱۱۲۰, Mexico
Carlos Ortiz-Hidalgo - Surgical Pathology Department, The American British Cowdray Medical Center, Mexico city ۰۱۱۲۰, Mexico

The solitary fibrous tumors (SFT) are rare tumors in the head and neck region and there have been only 5 cases reported in the literature in the soft palate. The current paper presents a unique case of a 62-year-old male with TFS arising in the soft palate. The tumor was highly cellular, composed of bland looking haphazardly arranged spindle cells. The signal transducer and activator of transcription (STAT)-6 and nuclear β-catenin were reactive by immunohistochemistry (IHC). The current case highlights the importance of the STAT-6 and the β-catenin as IHC markers to make a differential diagnosis with other entities. In summary, the paper presents the first reported case of a SFT of the soft palate in a male patient with nuclear expression of STAT-6 and β-catenin.

Solitary Fibrous Tumor (SFT), Immunohistochemistry (IHQ), Mesenchymal Tumors, Soft Palate, STAT-6, β-Catenin