No abstract available
MeSH terms
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Biopsy
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Carcinoma, Large Cell / pathology
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Carcinoma, Large Cell / secondary*
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Diagnosis, Differential
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Head and Neck Neoplasms / pathology
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Head and Neck Neoplasms / secondary*
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Humans
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Lung Neoplasms / pathology
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Lymph Nodes / pathology
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Lymphatic Metastasis / pathology*
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Male
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Middle Aged
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Neoplasms, Unknown Primary / pathology*
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Pancreatic Neoplasms / pathology
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Stomach Neoplasms / pathology