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A Case of Synchronous Subcarinal Lymph Node Metastasis from Double Primary Cancers with Small Cell Lung Cancer and
Tsukasa Satoh1, Ryota Saito1, Toshio Oyama2
1Department of Respiratory Medicine, Yamanashi Prefectural Central Hospital, Japan.
None:
A 78-year-old man presented with a history of weight loss. A systemic examination revealed lung and prostate cancers. Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) of a subcarinal lymph node revealed combined small-cell and non-small-cell carcinoma. Prostate-specific antigen (PSA) staining was performed to exclude distant metastases from prostate cancer. A positive result confirmed synchronous lymph node metastasis from a double cancer of small cell lung cancer and prostate cancer. When biopsies reveal multiple histological types, the possibility of metastasis from other cancer types should be carefully evaluated.
