| Abbreviation | Definition |
|---|---|
| CHUMS | Children's Hope For Understanding Multiple Sclerosis |
| CIA | Chemotherapy Induced Alopecia |
| CID | Choice In Dying |
| CIN | Cervical Intraepithelial Neoplasia |
| CIN | Chemotherapy Induced Neutropenia |
| CINV | chemotherapy-induced nausea and vomiting |
| CIO | Clinical Interventional Oncology |
| CIS | Carcinoma In Situ |
| CL | Caseous Lymphadenitis |
| CL | Clinical Leaflet |
| CLIC | Cancer and Leukemia In Childhood |
| CLL | Chronic Lymphocytic Leukaemia |
| CLP | Common Lymphoid Progenitor |
| CM | CentiMeter |
| CM | Customized Microscopy |
| CMCO | Center of Molecular and Cellular Oncology |
| CMI | Cell Mediated Immunity |
| CML | Chronic Myeloid Leukemia |
| CMML | Chronic Myelomonocytic Leukemia |
| CMMM | Cutaneous Metastases of Malignant Melanoma |