| Abbreviation | Definition |
|---|---|
| AN | Acoustic Neuroma |
| ANA | Anti-Nuclear Antibody |
| ANC | Absolute Neutrophil Count |
| ANCA | Anti-Neutrophil Cytoplasmic Antibodies |
| ANCHOR | Aberdeen and North Centre for Haematology Oncology and Radiotherapy |
| ANCO | Association of Northern California Oncologists |
| ANCT | Adjacent Non-Cancerous Tissue |
| ANED | Alive, No Evidence of Disease |
| ANLL | Acute Non-Lymphatic Leukaemia |
| ANLL | Acute Non-Lymphocytic Leukemia |
| AOCN | Advanced Oncology |
| AOCN | Advanced Oncology Certified Nurse |
| AOCNP | Advanced Oncology Certified Nurse Practitioner |
| AON | American Oncology Network |
| APAO | Association of Physician Assistants in Oncology |
| APBC | Advanced Pancreatic Biliary Adenocarcinoma |
| APCR | Australian Prostate Cancer Research |
| APF | Asset Protection Forum |
| APL | Acute Promyelocytic Leukemia |
| APOS | American Psycho Oncology Society |