Hodgkin lymphoma in two siblings with common variable immunodeficiency

Area of Science:

• Immunology
• Oncology
• Genetics

Background:

• Common variable immunodeficiency (CVID) is a primary immunodeficiency characterized by hypogammaglobulinemia and impaired B-cell differentiation.
• Patients with CVID exhibit increased susceptibility to infections, autoimmune disorders, and malignancies.
• The genetic and environmental factors contributing to CVID heterogeneity are not fully understood.

Observation:

• This report presents two siblings diagnosed with CVID who subsequently developed Hodgkin lymphoma.
• The 16-year-old sister was diagnosed at stage IIB, and her 12-year-old brother was diagnosed at stage IIIB.
• Their father and paternal uncle had a history of Hodgkin lymphoma but no diagnosed immunodeficiency.

Findings:

• The co-occurrence of CVID and Hodgkin lymphoma in siblings suggests a potential shared genetic predisposition or a complex interplay of factors.
• The family history of lymphoma in unaffected relatives indicates a possible hereditary component to cancer risk within this family.
• This case series underscores the importance of considering lymphoproliferative disorders in CVID patients.

Implications:

• Early cancer screening and vigilance are crucial for CVID patients, particularly those with a family history of malignancies.
• Further research into the genetic underpinnings of CVID and its association with specific cancers like Hodgkin lymphoma is warranted.
• Understanding these associations can lead to improved diagnostic strategies and personalized treatment approaches for affected individuals.