title: Primary Frontoparietal Osteosarcoma.
abstract: Osteosarcoma in the craniofacial region is rare. A 43-year-old female, the patient, self-detected a 3-cm tumor of the right frontoparietal region 4 months before. An incisional biopsy was performed and a osteosarcoma was reported. At admission, a 4 × 5 cm tumor was present on the right frontoparietal region, without extending to the orbital region but the patient underwent surgery 2 months after admission. The delay was due to 2 episodes of upper respiratory tract infection that required resolution. At the time of surgery the tumor measured 8 × 9 cm. A craniotomy with resection of the dura mater and extension to the orbital roof, dural plasty with placement of fascia lata, as well as placement of a methylmethacrylate plate and anterolateral thigh flap was performed. No adjuvant treatment was done, The patient now has 2 months of postoperative oncologic follow-up.
authors.affiliation: *Department of Head and Neck Surgery †Department of Neuroscience, Instituto Nacional de Cancerologia, Mexico City ‡Deparment of Surgery (Head & Neck), Hospital General Manuel Gea Gonzalez, Mexico CDMX, Mexico.
authors.forename: Kuauhyama
authors.initials: K
authors.lastname: Luna-Ortiz
authors.forename: Mario
authors.initials: M
authors.lastname: Alonso-Calamaco
authors.forename: Ramses U
authors.initials: RU
authors.lastname: Ortiz-Leyva
mesh_terms: D000328:Adult; D001859:Bone Neoplasms / Q000601:surgery*; D003399:Craniotomy; D004388:Dura Mater / Q000601:surgery; D005206:Fascia Lata / Q000637:transplantation; D005260:Female; D005624:Frontal Bone; D006801:Humans; D009915:Orbit / Q000601:surgery; D012516:Osteosarcoma / Q000601:surgery*; D010294:Parietal Bone; D019651:Plastic Surgery Procedures / Q000379:methods*; D013524:Surgical Flaps