| Abbreviation | Definition |
|---|---|
| PCAN | Pediatric Cancer Action Network |
| PCOC | Patient Centered Oncology Care |
| PCOC | Pediatric Cutaneous Oncology Clinic |
| PCOP | Patient Centered Oncology Payment |
| PCOP | Prostate Cancer Options Program |
| PCOS | Poly-Cystic Ovarian Syndrome |
| PCOS | Prostate Cancer Outcomes Study |
| PCPT | Prostate Cancer Prevention Trial |
| PCR | Pediatric Cancer Research |
| PCR | Prostate Cancer Research |
| PCRF | Pediatric Cancer Research Foundation |
| PCSN | Phoenix Cancer Support Network |
| PD | Progressive Disease |
| PDQ | Physician's Data Query |
| PDT | PhotoDynamic Therapy |
| PET | Pancreatic Endocrine Tumor |
| PET | Positron Emission Tomography |
| PFA | Platelet Function Analyzer |
| PFS | Progression Free Survival |
| PH | Past History |