Related Experiment Video
Updated: Jul 16, 2026

Isolating Human Peripheral Blood Mononuclear Cells and CD4+ T cells from Sézary Syndrome Patients for Transcriptomic Profiling
Published on: October 14, 2021
Multicentric Castleman disease with cutaneous manifestations: report of 2 cases and comparison with systemic
Yuko Higashi1, Takuro Kanekura, Ryoko Sakamoto
1Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan. higashiy@m.kufm.kagoshima-u.ac.jp
Insights
Two patients with multicentric Castleman disease presented with skin lesions and enlarged lymph nodes. One patient showed clonal T-cell gene rearrangement, suggesting a potential link to plasma cell disorders.
Area of Science:
- Hematology
- Oncology
- Dermatology
Background:
- Multicentric Castleman disease (MCD) is a rare lymphoproliferative disorder.
- Understanding the pathogenesis of MCD is crucial for effective treatment strategies.
Observation:
- Two patients with MCD presented with characteristic skin plaques, generalized lymphadenopathy, and polyclonal hypergammaglobulinemia.
- Histopathological examination revealed plasma cell and lymphocyte infiltration in skin and lymph nodes.
- In situ hybridization excluded human herpesvirus 8 and Epstein-Barr virus in skin specimens.
Findings:
- Polymerase chain reaction (PCR) detected clonal T-cell receptor gene rearrangement in bone marrow cells of one patient.
- This finding suggests a potential lymphoproliferative component in the disease presentation.
Implications:
- The study explores the potential relationship between MCD and systemic plasmacytosis.
- Findings may contribute to a better understanding of plasma cell proliferation in MCD.
- Further research is warranted to elucidate the role of T-cell clonality in MCD pathogenesis.
Abstract:
We report 2 patients with multicentric Castleman disease. Both presented with multiple, indurated, hyperpigmented plaques, generalized lymphadenopathy and polyclonal hypergammaglobulinemia. Biopsy specimens showed infiltration of mature plasma cells and lymphocytes in the dermis and lymph nodes. Skin specimens were negative for human herpesvirus 8, latent nuclear antigen 1 and Epstein-Barr virus by in situ hybridization. PCR disclosed clonal T-cell receptor gene rearrangement in the bone marrow cells of 1 patient. We discuss the possible relationship between multicentric Castleman disease and systemic plasmacytosis as well as plasma cell proliferation.
Related Concept Videos
Leishmaniasis
Multiple Sclerosis l: Introduction
Rocky Mountain Spotted Fever
Endocarditis II: Clinical Features of Infective Endocarditis
Cytomegalovirus Disease