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Published on: February 8, 2019
Fine-needle aspiration findings in Castleman's disease
1Department of Pathology, University of Texas Southwestern Medical Center, Dallas 75235-9072, USA.
Diagnostic Cytopathology
|July 16, 1999
Summary
Fine-needle aspiration (FNA) can help diagnose Castleman's disease, a rare hyaline vascular subtype. Cytologic, flow cytometry, and immunohistochemical findings are crucial for diagnosis, though distinguishing it from Hodgkin's lymphoma may be challenging.
Area of Science:
- Pathology
- Cytopathology
- Oncology
Background:
- Castleman's disease, particularly the hyaline vascular subtype, is rare.
- Experience with fine-needle aspiration (FNA) for this condition is limited.
Observation:
- This study details the cytologic, flow cytometric, and immunohistochemical findings from FNA in two cases.
- Cases involved incidental oropharyngeal and mediastinal masses in two female patients.
- Neither patient presented with systemic symptoms or abnormal routine laboratory results.
Findings:
- FNA findings, alongside surgical excision, confirmed hyaline vascular Castleman's disease.
- Suggestive cytologic features include a small lymphoid population and larger atypical cells resembling follicular dendritic cells.
- Flow cytometry confirmed a polytypic B-cell population, aiding diagnosis.
- Immunohistochemistry further supported the findings.
Implications:
- FNA can be a valuable tool for diagnosing Castleman's disease in the appropriate clinical setting.
- Combining FNA cytology with flow cytometry and immunohistochemistry enhances diagnostic accuracy.
- While suggestive, FNA may not definitively differentiate Castleman's disease from Hodgkin's lymphoma.
