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Primary Effusion Lymphoma (PEL)-Like Lymphoma in a Child With Congenital Immunodeficiency
Grace K S Lam1, Mohamed Abdelhaleem2, Gino R Somers2
1Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada.
Insights
This report details the first pediatric case of a rare Epstein-Barr virus positive/human herpes virus 8 negative Primary Effusion Lymphoma (PEL)-like lymphoma in a 9-year-old girl with combined immunodeficiency. Standard treatments proved ineffective, highlighting the need for new strategies for this rare lymphoma.
Area of Science:
- Pediatric Oncology
- Immunology
- Virology
Background:
- Primary Effusion Lymphoma (PEL) is a rare, aggressive non-Hodgkin lymphoma typically affecting immunocompromised adults.
- PEL is strongly associated with human herpes virus 8 (HHV-8) infection.
- Combined immunodeficiency (CID) predisposes individuals to various opportunistic infections and malignancies.
Observation:
- A 9-year-old female with CID presented with a PEL-like lymphoma.
- The lymphoma was characterized as Epstein-Barr virus (EBV) positive and HHV-8 negative.
- Standard treatments including chemotherapy for non-Hodgkin lymphoma, zidovudine, and interferon-α were administered.
Findings:
- The patient's disease progressed despite aggressive multimodal therapy.
- This represents the first reported pediatric case of an EBV-positive/HHV-8-negative PEL-like lymphoma.
- The case highlights a potential variant of PEL or a PEL-mimicking condition in pediatric populations.
Implications:
- Increased diagnostic vigilance for PEL-like lymphomas in immunocompromised children is warranted.
- Current treatment protocols may be insufficient for this rare pediatric lymphoma variant.
- Further research into the pathogenesis and effective therapeutic strategies for EBV-positive/HHV-8-negative PEL-like lymphomas is crucial.
Abstract:
Primary effusion lymphoma (PEL) is a rare lymphoma that occurs more frequently in immunocompromised adults and has a poor survival. We report a 9-year-old female with combined immunodeficiency with an Epstein-Barr virus positive/human herpes virus 8 negative PEL-like lymphoma. The treatment with systemic chemotherapy for non-Hodgkin lymphoma, zidovudine, and interferon-α failed to control disease progression. This is the first reported pediatric case of PEL-like lymphoma. Increased diagnostic awareness and more effective treatment strategies are needed for this rare lymphoma.
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