Professor Arnold Hill:

Again, a man would present with a lump. This is something we see frequently. The most common cause of a lump in a male is a term called gynecomastia, which is essentially breast tissue in a male. It commonly occurs with specific medications that are taken. In fact, in the young population, using cannabis is probably the commonest cause in a young teenager or 20-year-old. We see this frequently. They do not seem to know that; it is not written for them.

In males, however, their presentation is typically with a lump and the same diagnostic process goes on of doing a mammogram and an appropriate biopsy. It is a very small amount of our workload, however, given the percentage of one male breast cancer for every 200 females.