Ectopic ACTH-producing lung cancer presenting with prostatic metastasis.

The case is described of a patient presenting with prostatic symptoms and a biopsy proven neoplasm in the prostate gland. Radical radiotherapy initially given to the pelvis produced satisfactory symptomatic improvement with tumour regression, but the patient subsequently developed endocrine complications which led to the site of the primary carcinoma being reconsidered. The case illustrates the ubiquitous nature of aggressive metastatic cancer.