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Published on: February 27, 2015
Bone marrow involvement in Whipple's disease: rarely reported, but really rare?
R Walter1, S P Bachmann, A Schaffner
1Department of Medicine, Medical Clinic B, University Hospital, Rämistrasse 100, CH-8091 Zurich, Switzerland. roland.walter@dim.usz.ch
Abstract:
Infection with Tropheryma whippelii, the causative agent of Whipple's disease, involves nearly every organ. Involvement of bone marrow may be an overlooked area of Whipple's disease. We report a case of lymphoma-like Whipple's disease with bone marrow involvement together with a brief review of the literature on this topic. Despite minimal documentation, bone marrow may be commonly involved in Whipple's disease and, although not specific, diastase-resistant periodic acid-Schiff (PAS)-positive macrophages in bone marrow may offer an important clue to diagnosis using PAS histology of upper endoscopic biopsies, polymerase chain reaction or electron microscopy.
Insights
Whipple's disease, caused by Tropheryma whippelii, often affects multiple organs. Bone marrow involvement in Whipple's disease is frequently overlooked but can be diagnosed via PAS-positive macrophages.
Area of Science:
- Infectious Diseases
- Gastroenterology
- Hematology
Background:
- Whipple's disease is a rare systemic infection caused by Tropheryma whippelii.
- The disease typically affects the small intestine but can involve multiple organ systems.
Observation:
- This report details a case of Whipple's disease presenting with lymphoma-like symptoms and bone marrow involvement.
- Bone marrow involvement in Whipple's disease is often underdiagnosed.
Findings:
- Diastase-resistant periodic acid-Schiff (PAS)-positive macrophages in bone marrow can be a diagnostic clue.
- Diagnosis can be supported by PAS histology of upper endoscopic biopsies, PCR, or electron microscopy.
Implications:
- Recognizing bone marrow involvement is crucial for accurate Whipple's disease diagnosis.
- This finding may prompt earlier and more effective treatment strategies for affected patients.
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