口腔扁平上皮癌患者に発症した原発不明頸部転移腺癌の1例

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  • A case of metastatic cervical adenocarcinoma from an unknown primary site in a patient with oral squamous cell carcinoma
  • コウコウ ヘンペイ ジョウヒガン カンジャ ニ ハッショウ シタ ゲンパツ フメイ ケイブ テンイセンガン ノ 1レイ

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We report a case of metastatic cervical adenocarcinoma of an unknown primary site in a 70-year-old man who had undergone resection of squamous cell carcinoma of the left lower gingiva 4 years previously. For a diagnosis of delayed lymph node metastasis from gingival carcinoma, radical neck dissection was performed to treat the enlarged node in the left submandibular area. The histopathological diagnosis was metastatic adenocarcinoma of the lymph node. Endoscopic examination and blind biopsy of the pharynx and larynx, PET-CT, and whole body CT were done, but the primary organ was not identified. There has been no evidence of recurrence of either carcinoma for 7 years since neck dissection, and the origin of the nodal metastatic adenocarcinoma has not been discovered.

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