1. Gerle and Felson in 1963 described seven patients with intrabronchial metastasis from renal carcinoma.5 Four of these patients presented with pulmonary symptoms and died of pulmonary and bronchial metas:ases, and one expectorated tumour tissue. These authors also reviewed 10 other reported cases of bronchial metastases from hypernephroma, in two of which tumour expectoration occurred
2. The diagnosis and treatment of hypernephroma;Murphy, G.P.; Schirmer, H.K.;Geriatrics,1963
3. Renal carcinoma: natural history and results of treatment;Patel, N.P.; Lavengood, R.W.;J Urol,1978
4. Experiments on spread of neoplastic cells through respiratory passages;Furth, J.;Am J Pathol,1946
5. Lung as a transplant site for malignant tumors in rodents;Epstein, S.S.;Cancer,1966