LONDON (Reuters) - Penis extensions are the top cosmetic surgery treatment for British men while women choose liposuction or breast enlargement, medics said on Monday. The Harley Medical Group, which runs 10 private clinics in Britain, released figures for 2002 which showed more than a third of operations on men were for penis extensions, followed by nose surgery and liposuction. Men made up 35 percent of the group's patients last year and their average age was between 22-37 years old. The group said more men were also getting non-surgical procedures such as botox or collagen injections and paying for treatments...