We all know that people pronounce "peau d'orange" appropriately. As a French speaker, I'd much rather an inappropriate anglicized (is that a word?) version.
It isn't a surgeon thing, it's a northeast thing. I've only really heard it from people who trained in New York or Boston (be they radiologists [the first time I ever heard it], internists, pediatricians or surgeons).
Add Southern CA and WI then too. I heard it ALL the time on my surg rotation with people who trained in WI here in Milwaukee. And my dad trained in CA, and when I was out in CA on an away rotation, most of the guys out there trained in CA, and they all said it.
I did ask my dad a long ago why he said it. It was some weird reason, that I don't remember. I remember asking him what a sontimeter was though when I was in elementary school learning about the metric system.