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Chester-Erdheim disease: a neoplastic disorder
J Chetritt1, V Paradis, D Dargere
1Department of Pathology, Hospital de Bicêtre, France.
Human Pathology
|September 24, 1999
Summary
Chester-Erdheim disease, a rare histiocytosis, is likely a neoplastic disorder, not a reactive one. Studies suggest it originates from a clonal macrophage proliferation.
Area of Science:
- Histiocytosis
- Oncology
- Genetics
Background:
- Chester-Erdheim disease is a rare non-Langerhans cell histiocytosis.
- Characterized by xanthomatous infiltration of foamy macrophages.
- Its cause and pathogenesis are currently unclear.
Purpose of the Study:
- To investigate whether Chester-Erdheim disease is a polyclonal reactive disease or a clonal neoplastic disorder.
- To determine the clonal status of affected cells in Chester-Erdheim disease.
Main Methods:
- Analysis of DNA from microdissected paraffin-embedded tissue sections from five patients.
- Utilized the X-chromosome inactivation pattern of the human androgen receptor gene (HUMARA assay) to assess clonal status.
Main Results:
- Three out of four informative cases demonstrated a monoclonal pattern.
- One case exhibited a polyclonal pattern with a dense reactive infiltrate and spumous macrophages.
- Suggests Chester-Erdheim disease is a monoclonal lesion.
Conclusions:
- Chester-Erdheim disease is strongly suggested to be a monoclonal neoplastic disorder.
- It may represent the macrophage counterpart to Langerhans cell histiocytosis.
- Further research is required to elucidate the origin of this clonal proliferation.