| PBW | posterior bite wing |
|---|---|
| PCD | pacer-cardioverter-defibrillator; papillary collecting duct; paraneoplastic cerebellar degeneration;... |
| PCF | peripheral circulatory failure; pharyngoconjunctival fever; platelet complement fixation; posterior ... |
| PCOM | posterior communicating [artery] |
| PDA | patent ductus arteriosus; personal digital assistant; posterior descending artery; pulmonary disease... |