Primary pericranial Ewing\u27s sarcoma on the temporal bone: A case report.

BACKGROUND:Primary Ewing\u27s sarcoma originating in the pericranium is an extremely rare disease entity.CASE DESCRIPTION:A 9-year-old female patient was admitted to our department due to a left temporal subcutaneous mass. The mass was localized under the left temporal muscle and attached to the surface of the temporal bone. Head computed tomography revealed a mass with bony spicule formation on the temporal bone, however, it did not show bone destruction or intracranial invasion. F-18 fluorodeoxyglucose positron emission tomography showed no lesions other than the mass on the temporal bone. Magnetic resonance imaging showed that the mass was located between the temporal bone and the pericranium. The mass was completely resected with the underlying temporal bone and the overlying deep layer of temporal muscle, and was diagnosed as primary Ewing\u27s sarcoma. Because the tumor was located in the subpericranium, we created a new classification, "pericranial Ewing\u27s sarcoma," and diagnosed the present tumor as pericranial Ewing\u27s sarcoma.CONCLUSION:We herein present an extremely rare case of primary pericranial Ewing\u27s sarcoma that developed on the temporal bone

人工膝関節全置換術患者におけるBody Mass Indexの推移

本研究は,人工膝関節全置換術患者における術後のBody Mass Indexの推移を検討することを目的とした.対象は,変形性膝関節症に対して片側のみ人工膝関節全置換術が実施された患者のうち,Body Mass Index25kg/平方メートル以上であり,調査可能であった11例(男性2名,女性9名,平均年齢73.4歳)であった.調査項目は,術前,術後3か月,術後1年,術後2年,術後3年におけるBody Mass Index,疼痛・歩行能力,疼痛・階段昇降能力を測定した.結果,Body Mass Indexは,術前,術後3か月,術後1年,術後2年,術後3年の間において有意差を認めなかった.疼痛・歩行能力の評価では,術側が術前と術後3年の間で有意差を認めた(p<0.01).疼痛・階段昇降能力の評価では,術側が術前と術後1年,術前と術後2年の間で有意差を認めた(p<0.01).これらのことから,人工膝関節全置換術患者は,術後に疼痛,歩行能力,階段昇降能力は改善するものの,Body Mass Indexの有意な変化は認められておらず,肥満の改善に対する介入が必要である