title: Solitary Fibrous Tumor in the Lacrimal Gland Fossa: A Case Report.
abstract: Solitary fibrous tumors (SFTs) are benign, spindle-cell tumors of mesenchymal origin that are usually seen in the superior orbital area in adults. We report a rare case of SFT in the lacrimal gland fossa that developed in a young female. A 25-year-old woman had a 6-month history of a progressive painless mass in the left upper eyelid accompanied by proptosis. Computed tomography and magnetic resonance imaging showed an ovoid, demarcated mass with distinct margins in the lacrimal gland region without bone invasion. Excision biopsy with immunohistochemical study, specifically with positive signal transducer and activator of transcription 6, confirmed the diagnosis.
authors.affiliation: Department of Oculoplastic, Orbital and Lacrimal Surgery, Aichi Medical University Hospital, Aichi, Japan.
authors.forename: Jacqueline
authors.initials: J
authors.lastname: Mupas-Uy
authors.affiliation: Department of Oculoplastic, Orbital and Lacrimal Surgery, Aichi Medical University Hospital, Aichi, Japan.
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Kitaguchi
authors.affiliation: Department of Oculoplastic, Orbital and Lacrimal Surgery, Aichi Medical University Hospital, Aichi, Japan.
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Takahashi
authors.affiliation: Department of Pathology, Aichi Medical University Hospital, Aichi, Japan.
authors.forename: Emiko
authors.initials: E
authors.lastname: Takahashi
authors.affiliation: Department of Oculoplastic, Orbital and Lacrimal Surgery, Aichi Medical University Hospital, Aichi, Japan.
authors.forename: Hirohiko
authors.initials: H
authors.lastname: Kakizaki
keywords: Immunohistochemical; Lacrimal gland fossa; Solitary fibrous tumor; Young