Obesity is linked not only to more aggressive prostate cancer, but also to larger tumours, Italian researchers report.
Dr Capitanio of University Vita-Salute San Raffaele, Milan and colleagues analysed data on 1,275 men who had radical prostatectomy at their centre between 2006 and 2009.
The mean BMI was 26.3 and the mean tumour volume was 5.6 mL. But in normal weight men, the mean tumour volume was 5.0 mL. It rose to 5.8, 6.3 and 9.2 mL in overweight, obese and severely obese men, respectively.