Erdheim-Chester Disease Diagnosed by a Pericardial Fluid Cell Block Analysis

Area of Science:

• Rare Histiocytic Disorders
• Oncology
• Cardiology

Background:

• Erdheim-Chester disease (ECD) is a rare histiocytic disorder.
• ECD presents with non-specific symptoms, complicating diagnosis.
• Cardiac manifestations like pericardial effusion can mimic heart failure.

Purpose of the Study:

• To report a case of Erdheim-Chester disease (ECD).
• To highlight the diagnostic utility of pericardial fluid analysis in ECD.
• To emphasize a minimally invasive diagnostic approach for ECD.

Main Methods:

• Case report of a 71-year-old woman with exertional dyspnea and edema.
• Initial diagnosis considered heart failure due to cardiomegaly and pericardial effusion.
• Pericardiocentesis with cell block analysis and bone biopsy for definitive diagnosis.

Main Results:

• Pericardial fluid analysis revealed CD68-positive, CD1a-negative histiocytes.
• Bone biopsy confirmed the diagnosis of Erdheim-Chester disease.
• The findings underscore the value of pericardial fluid analysis in diagnosing ECD.

Conclusions:

• Pericardial fluid cell block analysis is a valuable tool for diagnosing ECD.
• This method offers a minimally invasive approach for ECD detection.
• Early and accurate diagnosis of ECD is crucial for patient management.