Kenichi Sugiyama

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BACKGROUND We report a rare case of a patient with a hypopharyngeal metastasis from breast cancer. CASE PRESENTATION Isolated breast cancer metastasis to the hypopharynx has been previously reported in only one autopsy case. Herein, we report a 56-year-old woman with metastases to the hypopharynx almost 24 years after receiving a mastectomy and(More)
INTRODUCTION Small cell carcinoma/neuroendocrine carcinoma (SCNEC) of the oropharynx is uncommon. Two cases of SCNEC in an 81-year-old woman and in a 54-year-old man are presented here. CASE DESCRIPTION We have documented two cases of SCNEC arising in the oropharynx with evidence of high-risk human papillomavirus (HPV) infection. Histologically, both(More)
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