Massive pleural effusion without bony involvement: an unusual presentation of advanced carcinoma prostate.

As noted under the natural history, the bone of axial skeleton and the ileopelvic lymphnodes specially the obturator groups are the commonest sites of metastasis spread of cancer prostate. Visceral metastasis in the absence of the above is extremely rare. We present a 50-year-male patient of cancer prostate with pleural metastases, pleural effusion and lung collapse on right side. Bone scan was essentially normal. Bilateral orchiectomy was done. Pleural effusion subsided and PSA dropped to 1.4 ng/ml from the initial 120 ng/ml at three months. Patient is on regular follow-up at three monthly intervals and last PSA done at 9 months was 2.1 ng/ml.