Post-transplant Lymphoproliferative Disorder.

Area of Science:

• Oncology
• Transplantation Medicine
• Immunology

Background:

• Post-transplant lymphoproliferative disorders (PTLD) are serious complications following solid-organ and bone marrow transplantation.
• The incidence of PTLD increases with the use of potent immunosuppressive therapies, despite improved long-term survival for transplant recipients.
• PTLD risk is highest early post-transplant but accumulates over time.

Observation:

• A 73-year-old male renal transplant recipient developed two sequential malignancies.
• The patient was diagnosed with bladder carcinoma 13 years post-transplant.
• Fifteen years post-transplant, the patient was diagnosed with gastric lymphoma.

Findings:

• This case illustrates the occurrence of PTLD as a second malignancy after initial successful renal transplantation.
• The development of distinct PTLD subtypes (gastric lymphoma) can occur many years after transplantation.
• Sequential malignancies present a complex clinical challenge in long-term transplant survivors.

Implications:

• Long-term surveillance for PTLD and other malignancies is crucial in organ transplant recipients.
• Understanding the evolving risk of PTLD and secondary cancers is vital for managing immunosuppression.
• This case underscores the need for vigilance regarding diverse PTLD presentations in the context of long-term immunosuppression.