| PTLD | Physical Teardown Logistics Demonstration 
| Others |
| PTLD | Plain Tread Loader Dozer
| Others |
| PTLD | Post Transplant Lymphoproliferative Disease
| Others |
| PTLD | Post Transplant Lymphoproliferative Disorder
| Others |
| PTLD | Post Transplant Lymphoproliferative Disorders
| Others |
| PTLD | Post transplantation lymphoproliferative disorder
| Others |
| PTLD | Post transplantation lymphoproliferative disorders
| Others |
| PTLD | Post-Transplanaation Lymphoproliferative Disorder
| Others |
| PTLD | Post-Transplant Lymphoproliferative Disorder
| Others |
| PTLD | Pseudo Top-Level Domain
| Others |