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Enhancing mediastinal mass at MR: Castleman disease

M L Hsieh¹, L E Quint, J M Faust

¹Department of Radiology, University of Michigan Medical Center, Ann Arbor 48109.

Magnetic Resonance Imaging

|January 1, 1993

Summary

Castleman disease, a rare lymphoproliferative disorder, can present as a middle mediastinal mass. Awareness of this condition is crucial due to potential bleeding risks during biopsy.

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Area of Science:

Thoracic oncology
Diagnostic imaging
Pathology

Background:

Mediastinal masses require accurate diagnosis for effective treatment.
Castleman disease is a rare lymphoproliferative disorder with unclear origins.
Enhancing mediastinal lesions pose diagnostic challenges.

Observation:

A 25-year-old male presented with an enhancing middle mediastinal mass.
Repeated biopsies were nondiagnostic and complicated by significant hemorrhage.
Imaging modalities included Magnetic Resonance (MR) and Computed Tomography (CT).

Findings:

Final diagnosis after thoracotomy and debulking was Castleman disease.
Castleman disease presents in hyaline vascular (80-90%) and plasma cell (10-20%) subtypes.

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Surgical excision is the typical curative treatment.

Implications:

Castleman disease should be considered in the differential diagnosis of enhancing mediastinal masses.
Clinicians must be aware of the risk of severe bleeding complications associated with biopsies of such lesions.
Timely and accurate diagnosis is essential for appropriate management and improved patient outcomes.