The term "panhandle" derives from the analogous part of a cooking pan, and its use is generally confined to the United States. A term used elsewhere is salient, derived from military salients. While similar to a peninsula in shape, a panhandle is not surrounded by water on three sides and connected to a geographical mainland. Instead, it is delimited by a land border on at least two sides and extends out from the larger geographical body of the administrative unit.
more to read: http://en.wikipedia.org/wiki/Panhandle