Heterotopic bone formation in renal cell carcinoma: a diagnostic challenge.

Formation of bone in cases of renal cell carcinoma is a rare finding and only a couple of case reports from Japan and one from India are mentioned in the literature. Calcification inside renal mass has been reported earlier but the prognostic implications have not been clearly elucidated. We report a case which showed heterotopic bone formation (ossification) inside the renal mass and was managed by radical nephrectomy. The histopathology showed clear cell renal carcinoma with multiple centers of ossification in the region of calcification suggesting bone formation. In this case report we discuss bone morphogenetic proteins which have been implicated as a prognostic and causative factor, highlight the difficulties in distinguishing between calcification and bone formation on the basis of radiological investigations and mention the geographic implications of this rare phenomenon which has not been described earlier.

Prostate cancer: altering the natural history by dietary changes.

The importance of diet on the development and progression of prostate cancer was initially suggested by epidemiological studies. Since then, there has been a vast amount of research in this field. Compelling evidence now provides hope that evidence-based dietary alterations may markedly alter the natural history of this disease. Is there enough evidence for clinicians to be able to advise dietary modifications? The preliminary results no doubt are encouraging, but at present there seems to be no evidence to justify the widespread use of these proposed dietary interventions. However, as public awareness increases, all physicians involved with the care of patients with cancer of the prostate will need to be better armed with the current updates and advice on this issue.