Unicentric castleman's disease located in the lower extremity: a case report.

Abstract:

BACKGROUND:Castleman's disease is a rare form of localized lymph node hyperplasia of uncertain etiology. Although the mediastinum is the most common site of involvement, rare cases occurring in lymph node bearing tissue of other localization have been reported, including only a few intramuscular cases. Unicentric and multicentric Castleman's disease are being distinguished, the latter harboring an unfavorable prognosis. CASE PRESENTATION:Here, we present a case of unicentric Castleman's disease in a 37-year-old woman without associated neoplastic, autoimmune or infectious diseases. The lesion was located in the femoral region of the right lower extremity and surgically resected after radiographic workup and excisional biopsy examinations. The tumor comprised lymphoid tissue with numerous germinal centers with central fibrosis, onion-skinning and rich interfollicular vascularization. CD23-positive follicular dendritic cells were detected in the germinal centers and numerous CD138-positive plasma cells in interfollicular areas. The diagnosis of mixed cellularity type Castleman's disease was established and the patient recovered well. CONCLUSIONS:In conclusion, the differential diagnosis of Castleman's disease should be considered when evaluating a sharply demarcated, hypervascularized lymphatic tumor located in the extremities. However, the developmental etiology of Castleman's disease remains to be further examined.

journal_name

BMC Cancer

journal_title

BMC cancer

authors

Schaefer IM,Günnel H,Schweyer S,Korenkov M

doi

10.1186/1471-2407-11-352

subject

Has Abstract

pub_date

2011-08-12 00:00:00

pages

352

issn

1471-2407

pii

1471-2407-11-352

journal_volume

11

pub_type

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