[kondro]

The biggest problem will be the lack of knowledge of Apple products and software from the perspective of he IT department. They can't manage and secure something they don't know how to use.

If you're the only person in the company with a Mac and you have a complex network of interrelated systems then supporting just one Mac on the network just may not be worth it and may increase the tech support issues for everyone, not just you.

In the simplest case, if you are sending a MS Word document to a collegue, the document may not render in the same way on the Mac and Windows versions of the platform. The IT department is likely to have to service request calls for an issue that wouldn't exist in a controlled and consistent environment.

Of course, if your IT systems are fairly open and have very few restrictions in place regarding installation of apps and personal settings, then there is very little added risk or overhead in including a Mac in the network. Just don't expect your IT department to support it.