Metastatic Endobronchial Hypernephroma

¹ University of Cincinnati College of Medicine, Department of Radiology, Mary Imogene Bassett Hospital, Cooperstown, New York
² Professor of Radiology, University of Cincinnati College of Medicine

Seven new cases of metastatic endobronchial hypernephroma together with ten cases collected from the literature have been reviewed. We believe this tumor is more prone to metastasize endobronchially than are other neoplasms. These patients often develop hemoptysis and other pulmonary symptoms, as well as roentgen and pathologic evidence of an endobronchial lesion before the primary renal tumor becomes evident. A diagnosis of bronchogenic carcinoma is often initially made but histologic examination of bronchial or expectorated masses will establish the correct diagnosis. Although endobronchial metastasis is usually an ominous sign, a few patients with a single endobronchial focus have obtained prolonged benefit from operation.