Gaucher disease: progressive mesenteric and mediastinal lymphadenopathy despite enzyme therapy.

A 5-year-old male with Gaucher's disease type 3 developed progressive mesenteric and mediastinal lymphadenopathy over 12 months, despite enzyme replacement therapy, contributing to the development of a protein-losing enteropathy. These complications are unique, indicating poorly accessible, differentially responsive compartments in patients with Gaucher's disease who are receiving enzyme therapy.