Endobronchial metastasis from oral fibrosarcoma 13 years after treatment of primary tumor.

Endobronchial metastasis (EBM) is uncommon and frequently is seen in renal, breast, and colorectal carcinomas. Other reported primary tumors include melanoma, sarcomas, and tumors of the uterine cervix, testis, ovary, prostate, thyroid, pancreas, and adrenal glands. With reviewing the literature, we were able to find only one report of EBM from fibrosarcoma (in Spanish). We described a 56-year-old woman with EBM of oral fibrosarcoma with local recurrence 13 years after treatment of primary tumor. We conclude that the possibility of central airway metastasis should be kept in mind if patients with a past history of malignancy present with symptoms consistent with bronchial tumors, even if there are 13 years interval. Of several mechanisms EBM, we assume direct aspiration and implantation of tumor cells to bronchus from oral cancer.