| AL | Alimentary |
| CE | Chronic enteropathy |
| CHOP | Cyclophosphamide, hydroxydaunorubicin, Oncovin, prednisolone |
| CIE | Chronic inflammatory enteropathy |
| DLBCL | Diffuse Large B-Cell Lymphoma |
| EATL | Enteropathy-associated T-cell lymphoma |
| FCE | Feline chronic enteropathy |
| FeLV | Feline leukemia virus |
| FIV | Feline immunodeficiency virus |
| GI | Gastrointestinal |
| GI-TLPD | Indolent T-cell lymphoproliferative disorder of the gastrointestinal tract |
| GI-TNKL | Primary gastrointestinal T-/NK-cell lymphoma |
| HGAL | High-grade alimentary lymphoma |
| IBD | Inflammatory bowel disease |
| IGAL | Intermediate alimentary lymphoma |
| IHC | Immunohistochemistry |
| ITCL-NOS | Intestinal T-cell lymphoma, not otherwise specified |
| LCL | Large-cell lymphoma |
| LGAL | Low-grade alimentary lymphoma |
| LGITL | Low-grade intestinal T-cell lymphoma |
| LGLL | Large granular lymphocyte lymphoma |
| LPE | Lymphocytic plasmacytic enteritis |
| MALT | Extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue |
| MEITL | Monomorphic epitheliotropic intestinal T-cell lymphoma |
| PARR | PCR for Antigen Receptor Rearrangements |
| PTCL-NOS | Peripheral T-cell lymphomas, not otherwise specified |
| SCL | Small-cell lymphoma |
| TALCL | T-cell anaplastic large-cell lymphoma |
| TCRBCL | T-cell-rich B-cell lymphoma |