Langerhans cell histiocytosis with digestive tract involvement

Area of Science:

• Pediatric Gastroenterology
• Pediatric Oncology
• Histiocytic Disorders

Background:

• Langerhans cell histiocytosis (LCH) is a rare clonal proliferative disorder of Langerhans-type cells.
• Gastrointestinal tract (GIT) involvement in pediatric LCH is infrequently reported, posing diagnostic challenges.

Observation:

• Presents two pediatric cases of LCH with significant gastrointestinal manifestations.
• Literature review indicates LCH predominantly affects children under two years (95%) and females (62%).
• Reported GI symptoms include vomiting, abdominal pain, diarrhea, malabsorption, and intestinal perforation.

Findings:

• One patient achieved successful treatment following the standard LCH protocol.
• The second patient is undergoing treatment for relapsed disease, highlighting treatment complexities.
• High mortality rate (over 50%) within 18 months of diagnosis is noted in severe GIT LCH cases.

Implications:

• Highlights the importance of considering LCH in pediatric patients with unexplained gastrointestinal symptoms.
• Emphasizes the need for prompt diagnosis and tailored treatment strategies for GIT LCH.
• Suggests potential for improved survival rates with timely and appropriate management of pediatric LCH.