Mucinous adenocarcinoma of the prostate with endobronchial metastasis. Endobronchial metastases can manifest clinical symptoms and x-ray findings mimicking a centrally located bronchogenic carcinoma. The authors recently encountered a case of endobronchial metastasis from a mucinous adenocarcinoma of the prostate that was originally diagnosed as a primary bronchogenic carcinoma. The correct diagnosis was made on the basis of the morphologic similarities between the primary prostatic lesion and the lung lesion and was corroborated by immunohistochemical analyses. 