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Dive into the research topics where Akihito Asakura is active.

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International Journal of Oral and Maxillofacial Surgery | 1992

Congenital midline sinus of the upper lip: Report of a case

Haruhiko Sakamoto; Yutaka Imai; Akihito Asakura

The occurrence of a congenital midline sinus of the upper lip is rare, only 22 cases having been previously reported. This case report describes the excision of a congenital midline sinus of the upper lip in a 2-year-old girl.


Journal of Japan Society for Oral Tumors | 1991

Clinical studies of the squamous cell carcinoma of the lower gum.

Yutaka Imai; Yoshimasa Suzuki; Tadaaki Sasaki; Tomoaki Nagashima; Kiyoyuki Okabe; Makoto Shinohara; Ichiro Nitanai; Takashi Fujita; Reiko Hosoya; Yukihiro Yokokura; Haruhiko Sakamoto; Akihito Asakura

1977年1月より1988年12月までの12年間に獨協医科大学口腔外科を受診した下顎歯肉扁平上皮癌一次症例23例について, 臨床病態所見ならびに治療成績について検討を行い, 以下の結果が得られた。1.性別では, 男性16例, 女性7例 (男女比2.29: 1) で, 初診時年齢は39歳から86歳までに分布し, 平均65.0歳であった。2.T分類ではT456.5%, T230.4%, T18.7%, T34.3%, N分類では, N152.2%, N030.4%, N2, N3各8.7%, M分類ではM18.7%であった。3.13例 (56.5%) に下顎骨の吸収がみられ, その様式はerosive type 4例, invasive type 9例で, 後者に吸収範囲が大きい傾向であった。4.下顎骨の吸収像と臨床進行度, 浸潤様式, 核DNAパターンとは, 一定の関係がみられた。5.治療法は, 放射線単独7例, 手術単独, 手術+放射線, 放射線+化学療法各4例, 手術+化学療法, 手術+放射線+化学療法各2例であった。6.治療成績は, 5年累積生存率43.4%で, 腫瘍の進展度, 治療法の相違が予後に影響を与えたと思われた。7.原発巣の核DNA量は, 臨床所見ならびに腫瘍浸潤様式とよく相対し, 下顎歯肉癌においても, 悪性度の指標や予後の推測に有用となり得ることが示唆された。


Japanese Journal of Oral & Maxillofacial Surgery | 1992

A case of congenital midline fistula of the upper lip and review of the literature

Yoshimasa Suzuki; Yutaka Imai; Tadaaki Sasaki; Haruhiko Sakamoto; Akihito Asakura


Japanese Journal of Oral & Maxillofacial Surgery | 1992

Clinico-pathological study on squamous cell carcinoma in the oral and maxillofacial regions

Yutaka Imai; Tadaaki Sasaki; Yoshimasa Suzuki; Tomoaki Nagashima; Kiyoyuki Okabe; Makoto Shinohara; Takashi Fujita; Ichiro Nitanai; Reiko Hosoya; Yukihiro Yokokura; Haruhiko Sakamoto; Akihito Asakura


Japanese Journal of Oral & Maxillofacial Surgery | 1991

Clinical experience in applying chitin sponge coated gauze to the operation of maxillary sinus

Tomoaki Nagashima; Haruhiko Sakamoto; Yutaka Imai; Yukihiro Yokokura; Reiko Hosoya; Masanari Toyohashi; Yoshimasa Suzuki; Kiyoyuki Okabe; Akihito Asakura


Japanese Journal of Oral & Maxillofacial Surgery | 1981

A case of two epidermoid cysts in the cheek

Haruhiko Sakamoto; Kazue Hayashi; Akihito Asakura; Kazuhiro Suzuki; Noriko Otozura; Takahisa Kamiyama; Akira Komori


Japanese Journal of Oral & Maxillofacial Surgery | 1979

2 cases of so-called soft part eosinophilic granuloma

Haruhiko Sakamoto; Akihito Asakura; Akira Muramoto; Suketomi Hirose; Fusako Aoki; Noriko Otozura


Japanese Journal of Oral & Maxillofacial Surgery | 1994

Expression of EGF in head and neck squamous cell carcinoma and its clinoco-pathological significance.

Tadaaki Sasaki; Yutaka Imai; Tomoaki Nagashima; Akihito Asakura


Japanese Journal of Oral & Maxillofacial Surgery | 1991

A case with multiple abnormalities born to epileptic mother taking anticonvulsant drugs

Yutaka Imai; Yukihiro Yokokura; Tomoaki Nagashima; Masanari Toyohashi; Yoshimasa Suzuki; Kiyoyuki Okabe; Reiko Hosoya; Haruhiko Sakamoto; Akihito Asakura


J.Jpn.Stomatol.Soc | 1990

The change in peripheral blood flow by the action of varying magnetic. With special reference to the combination of polarities (N-pole, S-pole).:With special reference to the combination of polarities (N-pole, S-pole)

Haruhiko Sakamoto; Akihito Asakura

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