A titanium screw-retaining temporary denture on the raw surface muscular flap for the immediate maxillary reconstruction

Miyashita, Hideyuki; Asoda, Seiji; Horie, Nobuyuki; Usuda, Shin; Kato, Shin; Muraoka, Wataru; Yamada, Yasusei; Yoshikawa, Masahide; Hasegawa, Takuya; Onizawa, Katsuhiro; Tanaka, Ichiro; Yazawa, Masaki; Ogata, Hisao; Kishi, Kazuo; Tomita, Toshiki; Nakagawa, Taneaki; Kawana, Hiromasa

doi:10.1016/j.ajoms.2015.06.002

Cited by 1 publication

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“…Eventually, radical resection with an adequate margin was achieved followed by reconstruction surgery. After reconstruction of the lateral wall of the orbit with a titanium mesh, raw surface muscular flap reconstruction was also carried out immediately, as described previously [ 8 ]. Since morphological reconstruction mimicking natural morphology of the palate can be achieved by using this method, it was easier to apply the dental prosthesis for our patient.…”

Section: Case Presentationmentioning

confidence: 99%

Dedifferentiated parosteal osteosarcoma of the maxilla: a case report and review of the literature

et al. 2018

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BackgroundParosteal osteosarcomas are usually low-grade tumors, however, sometimes they transform to high-grade tumors, which is named dedifferentiation. This phenomenon has been reported in long bones. Recently, we encountered a patient with dedifferentiated parosteal osteosarcoma occurring in the maxilla. Here, we report a first case of dedifferentiated parosteal osteosarcoma of the head and neck region.Case presentationA 45-year-old Japanese woman with a refractory bone lesion in the maxilla presented to our hospital. A biopsy showed atypical spindle cell proliferation involving dedifferentiated high-grade component, which was diagnosed as dedifferentiated parosteal osteosarcoma. Three cycles of neoadjuvant chemotherapy using ifosfamide and pirarubicin were performed followed by sub-total maxillectomy. Histopathological results showed that neoadjuvant chemotherapy was effective for high-grade component. The decision to perform adjuvant chemotherapy (cisplatin and pirarubicin) was made because distant metastasis has been reported, even in cases with dedifferentiated parosteal osteosarcoma in which complete necrosis of high-grade component was achieved due to neoadjuvant chemotherapy. There was no recurrence 15 months after surgery.ConclusionsDedifferentiated parosteal osteosarcoma can occur in the head and neck region. Chemotherapy including anthracycline anticancer agent could be effective for high-grade component of dedifferentiated parosteal osteosarcoma.

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Section: Case Presentationmentioning

confidence: 99%