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Author Spotlight: A Focus on Standardized Salivary Gland Ultrasound Protocol in Connective Tissue Disease Research
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[Rare differential diagnosis in bilateral gonalgia].
Michael Mayr1, Niklas Zojer2, Siroos Mirzaei3
1Institut für Pathologie und Mikrobiologie, Klinik Ottakring, Montleartstraße 37, 1160, Wien, Österreich. michael.mayr@gesundheitsverbund.at.
Pathologie (Heidelberg, Germany)
|August 4, 2022
Summary
Erdheim-Chester disease (ECD) is a rare condition diagnosed in a 47-year-old patient presenting with bone pain and weight loss. Molecular analysis revealed BRAF V600E and BCOR mutations, confirming the ECD diagnosis.
Area of Science:
- Oncology
- Pathology
- Genetics
Background:
- Erdheim-Chester disease (ECD) is a rare non-Langerhans cell histiocytosis.
- Diagnosis can be challenging due to non-specific symptoms like bone pain and weight loss.
Observation:
- A 47-year-old patient presented with bilateral gonalgia, weight loss, and night sweats.
- CT scan revealed extensive sclerosis of the axial skeleton.
- Trephine biopsy showed foamy cell infiltrates with histiocytic markers.
Findings:
- Molecular analysis identified low allelic BRAF V600E and BCOR mutations.
- These genetic findings were crucial for diagnosing Erdheim-Chester disease.
- Histologic and molecular findings were consistent with ECD.
Implications:
- This case highlights the importance of molecular diagnostics in rare diseases.
- Understanding the genetic basis of ECD aids in diagnosis and potential targeted therapies.
- Further research into BRAF V600E and BCOR mutations in ECD is warranted.
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