| Abbreviation | Definition |
|---|---|
| RROC | Reza Radiotherapy Oncology Center |
| RS | Reed-Sternberg cells |
| RSIS | Radiology Scheduling/Inventory System |
| RT | RadioTherapy |
| RTOR | Real Time Oncology Review |
| Rx | Prescriptions |
| SA | Surface Area |
| SAE | Serious Adverse Event |
| SAJO | South African Journal of Oncology |
| SAMOC | Sir Anthony Mamo Oncology Centre |
| SAOC | South African Oncology Consortium |
| SASMO | South African Society of Medical Oncology |
| SC | SubCutaneous |
| SCAL | Service Controlled Agile Logistics |
| SCC | Short Course Chemotherapy |
| SCC | Squamous Cell Carcinoma |
| SCC | Strategic Cell Controller |
| SCCA | Seattle Cancer Care Alliance |
| SCFL | Secondary Cutaneous Follicular Lymphoma |
| SCL | Stem Cell Leukemia |