| Abbreviation | Definition |
|---|---|
| MBC | Male Breast Cancer |
| MBCO | Molecular Biology in Clinical Oncology |
| MBMC | Myeloid Bone Marrow Culture |
| MCA | Medicines Control Agency (UK) |
| MCE | Mammography Continuing Education |
| MCL | Mantle Cell Lymphoma |
| MCL | Mononuclear Cell Leukemia |
| MCMC | Multidisciplinary Cancer Management Course |
| MCR | Myeloablative Conditioning Regimen |
| mCRC | metastatic Colorectal Cancer |
| MD | Moderately Differentiated |
| MDM | mouse double minute |
| MDR | Multi Drug Resistant |
| MDS | Myelo Dysplastic Syndrome |
| MEF | Mouse Embryonic Fibroblast |
| MEN | Multiple Endocrine Neoplasia |
| MEOS | Monthly Enhanced Oncology Services |
| MEQ/L | Milliequivalent Per Liter |
| METS | Metastases |
| MFI | Multiplex Fluorescent Immunoassay |