書誌事項
- タイトル別名
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- Clinicopathological investigation of oral squamous cell carcinoma resulting in metastasis to the Level V region
- Level Ⅴ リョウイキ エ テンイ オ キタシタ コウコウ ヘンペイ ジョウヒガン ノ リンショウ ビョウリ ソシキガクテキ ケントウ
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Oral squamous cell carcinoma （OSCC） often metastasizes to the cervical lymph nodes, but Level V metastasis is infrequent, and the prognosis of such cases is extremely poor. We describe the clinicopathological features of Level V metastasis in patients with OSCC.<br>Four （1.9%） of 212 patients who underwent radical or modified radical neck dissection had histopathologically confirmed Level V metastasis. The primary site was the tongue in 1 patient, the lower gingiva in 2 patients, and the oral floor in 1 patient. Level V metastasis was associated with the mode of invasion, but not with T stage. In the patients with Level V metastasis, the mean total number of involved nodes on the affected side was 18.8, and the mean rate of conversion to positive status of the cervical lymph nodes was 49%. As for metastatic features, all patients showed metastasis to lymph nodes in the Level II region. The treatment outcome of Level V metastasis was poor, and all patients died of disease with a mean survival time of 9.3 months after neck dissection. In conclusion, although the frequency of Level V metastasis in oral squamous cell carcinoma was low, the prognosis was extremely poor. Furthermore, lymph-node metastases and extracapsular invasion in other regions appeared to be associated with Level V metastasis.
収録刊行物
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- 日本口腔外科学会雑誌
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日本口腔外科学会雑誌 60 (6), 335-341, 2014
社団法人 日本口腔外科学会
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詳細情報 詳細情報について
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- CRID
- 1390001206531169280
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- NII論文ID
- 130005083472
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- NII書誌ID
- AN00189163
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- ISSN
- 21861579
- 00215163
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- NDL書誌ID
- 025625062
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 使用不可