Gastrointestinal Alpha Heavy Chain Disease With Persistent Campylobacter Jejuni Colonization and Refractory...

Area of Science:

• Gastroenterology
• Hematology
• Infectious Diseases

Background:

• Alpha heavy chain disease (αHCD) is a rare mucosa-associated lymphoid tissue lymphoma defined by a truncated immunoglobulin alpha heavy chain.
• Its pathogenesis is associated with chronic immune stimulation and clonal B-cell expansion, often involving the gastrointestinal tract.

Observation:

• A rare case of gastrointestinal αHCD is presented.
• The patient exhibited five concurrent pathogens, identified using a multiplex real-time polymerase chain reaction panel.
• Persistent Campylobacter jejuni colonization and refractory giardiasis were notable clinical features.

Findings:

• The study identified multiple pathogens contributing to the complex presentation of αHCD.
• Persistent Campylobacter jejuni and giardiasis were strongly associated with the disease in this case.
• Multiplex PCR panels are effective in identifying concomitant infections in gastrointestinal lymphomas.

Implications:

• This case highlights the potential role of multiple infectious agents in the pathogenesis of αHCD.
• Understanding the interplay between pathogens and lymphomagenesis is crucial for effective treatment strategies.
• Further research into the infectious triggers of αHCD may lead to improved diagnostic and therapeutic approaches.