title: Giant Solitary Fibrous Tumor of Orbit.
abstract: Solitary fibrous tumors (SFTs) have been reported in various locations in the body. Solitary fibrous tumors are extremely rare tumors, especially when located in the orbit. Diagnosis of SFT cannot be made based on histopathology only because it exhibits a variable microscopic appearance, and necessitates immunohistochemistry to confirm the diagnosis. A 51-year-old man was admitted to our clinic for the evaluation of a mass bulging in his left eye. Clinical examination revealed a painless mass extruding out of the orbital cavity with dimensions of 8 × 7  cm. Exenteration of the left eye including the upper and lower eyelid and reconstruction of the orbital cavity using a temporoparietal fascia flap and a temporal muscle flap was performed. SFT of orbital region is known as a slow growing and painless tumor. Based on previous studies, increased mitotic rate of the tumor gives the impression that the tumor has a malignant nature. Until now a small number or orbital SFTs were reported and none of them presented with a giant mass protruding out of the orbital cavity. We present a unique case of orbital SFT filling the whole orbital cavity and protruding outward as a giant mass. This case has been reported to expand our knowledge in this debated entity.
authors.affiliation: *Department of Plastic Reconstructive and Aesthetic Surgery †Department of Ear Nose and Throat ‡Department of Plastic Reconstructive and Aesthetic Surgery, Mersin University Hospital, Mersin University School of Medicine, Mersin, Turkey.
authors.forename: Goktekin
authors.initials: G
authors.lastname: Tenekeci
authors.forename: Alper
authors.initials: A
authors.lastname: Sari
authors.forename: Yusuf
authors.initials: Y
authors.lastname: Vayisoglu
authors.forename: Onur
authors.initials: O
authors.lastname: Serin
mesh_terms: D005205:Fascia / Q000637:transplantation; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D009915:Orbit / Q000601:surgery; D017233:Orbit Evisceration / Q000379:methods; D009918:Orbital Neoplasms / Q000175:diagnosis / Q000601:surgery*; D019651:Plastic Surgery Procedures / Q000379:methods; D016038:Skin Transplantation / Q000379:methods; D054364:Solitary Fibrous Tumors / Q000175:diagnosis / Q000601:surgery*; D013524:Surgical Flaps / Q000637:transplantation; D013703:Temporal Muscle / Q000637:transplantation