Multidetector computed tomographic imaging of Erdheim-Chester disease

Area of Science:

• Cardiovascular Imaging
• Histiocytosis Research
• Rare Diseases

Background:

• Erdheim-Chester disease (ECD) is a rare non-Langerhans-cell histiocytosis affecting multiple organs.
• Cardiovascular involvement in ECD often leads to a poor prognosis.
• Typical ECD presentation involves infiltration of connective, perivascular, and adipose tissues.

Observation:

• A 29-year-old female presented with angina.
• Cardiac multidetector computed tomographic angiography revealed mediastinal soft tissue.
• This soft tissue mass was compressing the left anterior descending coronary artery.

Findings:

• The patient's symptoms were exclusively attributed to coronary artery stenosis caused by ECD.
• This is the first reported case of ECD presenting solely with angina and coronary artery stenosis in a young adult.
• Low-dose, dual-source, 256-slice multidetector computed tomography was utilized for characterization.

Implications:

• Advanced CT angiography can effectively characterize ECD, even in atypical presentations.
• Early diagnosis and characterization of ECD are crucial for managing severe cardiovascular complications.
• This case broadens the understanding of ECD's potential cardiac manifestations in young adults.