We abbreviate like crazy.... LFA= Left Forearm, RFA= Right Forearm, RAC= Right antecubital, etc. And it's assumed that it is a peripheral, as opposed to a central. We say PICC, or MP (Mediport) so, a right chest wall mediport would be= RCWMP (x1, or x2, depending on how many mediports) How's THAT for uncomplicated?