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Xiao P, Wang Q, Dong Z, Su J, Chen Y, Fan W. Ten-year anemia as initial manifestation of Castleman disease in the abdominal cavity: A case report. Open Life Sci 2024; 19:20220898. [PMID: 38947769 PMCID: PMC11211873 DOI: 10.1515/biol-2022-0898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 05/25/2024] [Accepted: 05/29/2024] [Indexed: 07/02/2024] Open
Abstract
Castleman disease (CD) is a relatively rare lymphoproliferative disorder. Lesions predominantly originate on the chest and neck and rarely occur on the abdomen. A 34-year-old female presented to our hospital with an unexplained 10-year history of anemia. A pathological diagnosis of plasma cell-type CD was established. One cycle of chemotherapy (thalidomide, cyclophosphamide, and prednisolone) improved her anemia significantly. Prompt etiological diagnosis and early intervention are essential to address systemic manifestations in patients with CD, and it is crucial to consider CD as a differential diagnosis when intra-abdominal masses are detected.
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Affiliation(s)
- Pingping Xiao
- Department of Hematology and Rheumatology, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, P.R. China
| | - Qingqing Wang
- Department of Hematology and Rheumatology, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, P.R. China
| | - Zhigao Dong
- Department of Hematology and Rheumatology, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, P.R. China
| | - Junnan Su
- Department of Hematology and Rheumatology, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, P.R. China
| | - Yongquan Chen
- Department of Hematology and Rheumatology, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, P.R. China
| | - Wei Fan
- Department of Hematology and Rheumatology, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, P.R. China
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Tane M, Kosako H, Sonoki T, Hosoi H. TAFRO Syndrome and COVID-19. Biomedicines 2024; 12:1287. [PMID: 38927495 PMCID: PMC11200813 DOI: 10.3390/biomedicines12061287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/29/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024] Open
Abstract
TAFRO syndrome is a systemic inflammatory disease characterized by thrombocytopenia and anasarca. It results from hyperinflammation and produces severe cytokine storms. Severe acute respiratory syndrome coronavirus 2, which led to the coronavirus disease 2019 (COVID-19) pandemic, also causes cytokine storms. COVID-19 was reported to be associated with various immune-related manifestations, including multisystem inflammatory syndrome, hemophagocytic syndrome, vasculitis, and immune thrombocytopenia. Although the pathogenesis and complications of COVID-19 have not been fully elucidated, the pathogeneses of excessive immunoreaction after COVID-19 and TAFRO syndrome both involve cytokine storms. Since the COVID-19 pandemic, there have been a few case reports about the onset of TAFRO syndrome after COVID-19 or COVID-19 vaccination. Castleman disease also presents with excessive cytokine production. We reviewed the literature about the association between TAFRO syndrome or Castleman disease and COVID-19 or vaccination against it. While the similarities and differences between the pathogeneses of TAFRO syndrome and COVID-19 have not been investigated previously, the cytokines and genetic factors associated with TAFRO syndrome and COVID-19 were reviewed by examining case reports. Investigation of TAFRO-like manifestations after COVID-19 or vaccination against COVID-19 may contribute to understanding the pathogenesis of TAFRO syndrome.
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Affiliation(s)
- Misato Tane
- Department of Hematology/Oncology, Wakayama Medical University, Wakayama 641-8509, Japan; (M.T.)
- Department of Hematology, Kinan Hospital, Wakayama 646-8588, Japan
| | - Hideki Kosako
- Department of Hematology/Oncology, Wakayama Medical University, Wakayama 641-8509, Japan; (M.T.)
- Department of Hematology, Kinan Hospital, Wakayama 646-8588, Japan
| | - Takashi Sonoki
- Department of Hematology/Oncology, Wakayama Medical University, Wakayama 641-8509, Japan; (M.T.)
- Department of Transfusion Medicine, Wakayama Medical University Hospital, Wakayama 641-8510, Japan
| | - Hiroki Hosoi
- Department of Hematology/Oncology, Wakayama Medical University, Wakayama 641-8509, Japan; (M.T.)
- Department of Transfusion Medicine, Wakayama Medical University Hospital, Wakayama 641-8510, Japan
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Kurokawa R, Baba A, Kano R, Kaneko Y, Kurokawa M, Gonoi W, Abe O. Radiological Imaging Findings of Adrenal Abnormalities in TAFRO Syndrome: A Systematic Review. Biomedicines 2024; 12:837. [PMID: 38672191 PMCID: PMC11048497 DOI: 10.3390/biomedicines12040837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
This systematic review article aims to investigate the clinical and radiological imaging characteristics of adrenal abnormalities in patients with thrombocytopenia, anasarca, fever, reticulin fibrosis, renal dysfunction, and organomegaly (TAFRO) syndrome. We searched the literature in PubMed, the Cochrane Library, and the Web of Science Core Collection. Ultimately, we analyzed 11 studies with 22 patients plus our 1 patient, totaling 23 patients. The mean age was 47.0 ± 12.6 years. There were 20 male and 3 female patients, respectively. The histopathological analysis of lymph nodes was conducted in 15 patients (65.2%), and the diagnosis was consistent with TAFRO syndrome in all 15 patients. Among the 23 patients, 11 patients (18 adrenal glands) showed adrenal ischemia/infarction, 9 patients (13 adrenal glands) showed adrenal hemorrhage, and 4 patients (7 adrenal glands) showed adrenomegaly without evidence of concurrent ischemia/infarction or hemorrhage. One patient demonstrated unilateral adrenal hemorrhage and contralateral adrenomegaly. In patients with adrenal ischemia/infarction, the adrenal glands displayed poor enhancement through contrast-enhanced computed tomography (CT). In patients with adrenal hemorrhage, the adrenal glands revealed high attenuation through non-enhanced CT and hematoma through magnetic resonance imaging. Adrenomegaly, with or without adrenal ischemia/infarction or hemorrhage, was observed in all patients (23/23, 100%). The subsequent calcification of the affected adrenal glands was frequently observed (9/14, 64.3%) when a follow-up CT was performed. Abdominal pain was frequent (15/23, 65.2%), all of which occurred after the disease's onset, suggesting the importance of considering TAFRO syndrome as a cause of acute abdomen. Given the absence of evidence of adrenal abnormalities in non-TAFRO-idiopathic multicentric Castleman disease (iMCD), they may serve as diagnostic clues for differentiating TAFRO syndrome from non-TAFRO-iMCD.
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Affiliation(s)
- Ryo Kurokawa
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan; (M.K.); (W.G.); (O.A.)
| | - Akira Baba
- Department of Radiology, The Jikei University School of Medicine, 3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan; (A.B.); (R.K.)
| | - Rui Kano
- Department of Radiology, The Jikei University School of Medicine, 3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan; (A.B.); (R.K.)
| | - Yo Kaneko
- Department of Radiology, Gifu University, 1-1 Yanagido, Gifu City 501-1194, Japan;
| | - Mariko Kurokawa
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan; (M.K.); (W.G.); (O.A.)
| | - Wataru Gonoi
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan; (M.K.); (W.G.); (O.A.)
| | - Osamu Abe
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan; (M.K.); (W.G.); (O.A.)
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Rizzo S, Camboni A, Van Eeckhout P, Collins P, Somja J. [Unusual gluteal localization of unicentric Castleman's disease: A case report and review of the literature]. Ann Pathol 2024; 44:130-136. [PMID: 37798152 DOI: 10.1016/j.annpat.2023.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 08/30/2023] [Accepted: 09/08/2023] [Indexed: 10/07/2023]
Abstract
BACKGROUND Castleman's disease is a rare and benign lymphoproliferative disorder which can be unicentric (UCD) or multicentric (MCD). UCD usually involves a single lymph node or less frequently a group of lymph nodes. The most common sites of nodal UCD presentation are the mediastinum, neck, abdomen and retroperitoneum. Rarely extranodal involvement has been reported. The intramuscular location is very unusual with only about 10 cases described in medical literature so far. CASE REPORT We present a case of atypical localization of Castleman's disease occurring in the right gluteal area in a 40-years-old female patient. The patient was asymptomatic and clinical examination was unremarkable except for a right gluteal palpable mass. The CT scanner-guided needle core biopsy was inconclusive. A surgical excision was then performed that revealed a hyaline-vascular type of Castleman's disease. The patient has an uneventful post-operative course. CONCLUSION The present case is instructive in the work-up of primary soft tissue tumors, for which Castleman's disease is extremely rare and not considered in the differential diagnosis of clinicians. Pathologists must be aware of its existence so that it can be evoked in the presence of a lymphoid population on histological examination.
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Affiliation(s)
- Stéphanie Rizzo
- Service d'anatomie et cytologie pathologiques, CHU de Liège, site Sart-Tilman, 4000 Liège, Belgique.
| | - Alessandra Camboni
- Service d'anatomie et cytologie pathologiques, cliniques universitaires Saint-Luc, 1200 Bruxelles, Belgique
| | - Pascal Van Eeckhout
- Service d'anatomie et cytologie pathologiques, cliniques universitaires Saint-Luc, 1200 Bruxelles, Belgique
| | - Patrick Collins
- Service d'anatomie et cytologie pathologiques, CHU de Liège, site Sart-Tilman, 4000 Liège, Belgique
| | - Joan Somja
- Service d'anatomie et cytologie pathologiques, CHU de Liège, site Sart-Tilman, 4000 Liège, Belgique
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El Hussein S, Evans AG, Fang H, Wang W, Medeiros LJ. Unicentric Castleman Disease: Illustration of Its Morphologic Spectrum and Review of the Differential Diagnosis. Arch Pathol Lab Med 2024; 148:99-106. [PMID: 36920021 DOI: 10.5858/arpa.2022-0404-ra] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2022] [Indexed: 03/16/2023]
Abstract
CONTEXT.— Unicentric Castleman disease (UCD) is a dynamic entity with a wide spectrum of morphologic findings. UCD can be further subdivided into hyaline-vascular and mixed/plasmacytic variants. Hyaline-vascular UCD has both follicular and interfollicular (stromal) changes, and occasionally these lesions show a skewed representation of either the follicular or stromal compartments. Plasmacytosis is usually minimal in the hyaline-vascular variant. The mixed/plasmacytic variant of UCD is composed of sheets of plasma cells often associated with a variable number of follicles with regressive changes. OBJECTIVE.— To illustrate the differential diagnosis of UCD, as it is quite broad and includes lymphomas, plasma cell neoplasms, stromal neoplasms such as follicular dendritic cell sarcoma and vascular neoplasms, immunoglobulin G4-related disease, infections, and other rare lesions. An additional objective is to enhance awareness of the morphologic features of UCD in excisional and in small core-needle biopsy specimens, the latter of which may inadvertently target follicle- or stroma-rich areas, causing diagnostic challenges. DATA SOURCES.— In this review, we provide readers a concise illustration of the morphologic spectrum of UCD that we have encountered in our practice and a brief discussion of entities in the differential diagnosis. CONCLUSIONS.— UCD exhibits a broad spectrum of morphologic changes, and awareness of these morphologic variations is key to avoid misdiagnosis.
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Affiliation(s)
- Siba El Hussein
- From the Department of Pathology, University of Rochester Medical Center, Rochester, New York (El Hussein, Evans)
| | - Andrew G Evans
- From the Department of Pathology, University of Rochester Medical Center, Rochester, New York (El Hussein, Evans)
| | - Hong Fang
- the Department of Hematopathology, University of Texas MD Anderson Cancer Center, Houston (Fang, Wang, Medeiros)
| | - Wei Wang
- the Department of Hematopathology, University of Texas MD Anderson Cancer Center, Houston (Fang, Wang, Medeiros)
| | - L Jeffrey Medeiros
- the Department of Hematopathology, University of Texas MD Anderson Cancer Center, Houston (Fang, Wang, Medeiros)
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Lucas F, O'Keefe TE, Banks N, Bledsoe J, Kim AS, Sadigh S. Old links revisited: Co-occurring thymoma and Castleman disease. Am J Hematol 2023; 98:1497-1498. [PMID: 36794925 DOI: 10.1002/ajh.26885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/09/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023]
Affiliation(s)
- Fabienne Lucas
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Thomas E O'Keefe
- Department of Pathology, Saint Elizabeth's Medical Center, Boston, Massachusetts, USA
| | - Nadia Banks
- Department of Pathology, Saint Elizabeth's Medical Center, Boston, Massachusetts, USA
| | - Jacob Bledsoe
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts, USA
- Department of Pathology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Annette S Kim
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Sam Sadigh
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts, USA
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7
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[Castleman disease]. Ann Pathol 2023; 43:13-24. [PMID: 36192235 DOI: 10.1016/j.annpat.2022.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 06/13/2022] [Accepted: 07/05/2022] [Indexed: 01/25/2023]
Abstract
The term "Castleman disease" covers a variety of entities that have very different clinical, biological, pathological and physiopathological features. In this issue, we review the characteristics of the unicentric Castleman disease, of the HHV8 associated multicentric Castleman disease and the idiopathic multicentric Castleman disease associated or not with TAFRO syndrome ("thrombocytopenia, anasarca, fever, reticulin myelofibrosis and/or renal insufficiency, organomegaly"). We detail the differential diagnostics of these entities.
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Mutations in the plasma cell clone identify mechanism of polyneuropathy in a case of POEMS syndrome associated with Castleman disease and multiple myeloma. Ann Hematol 2023; 102:239-242. [PMID: 36401620 PMCID: PMC9807477 DOI: 10.1007/s00277-022-05032-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 11/04/2022] [Indexed: 11/21/2022]
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Zhang YH, He YF, Yue H, Zhang YN, Shi L, Jin B, Dong P. Solitary hyoid plasmacytoma with unicentric Castleman disease: A case report and review of literature. World J Clin Cases 2022; 10:13364-13372. [PMID: 36683640 PMCID: PMC9850993 DOI: 10.12998/wjcc.v10.i36.13364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/17/2022] [Accepted: 12/05/2022] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Solitary plasmacytoma and unicentric Castleman disease (UCD) are rare lymphoproliferative disorders characterized by monoclonal plasma cells and a single set of locally enlarged lymph nodes, respectively.
CASE SUMMARY A 48-year-old Han Chinese man presented to our department with a neck mass and progressive foreign body sensation in his throat. 18F-FDG positron emission tomography revealed focally increased radioactivity centered around the hyoid, and computed tomography (CT) revealed osteolytic lesions. Histopathology revealed Castleman-like features and CD138/CD38-positive mature plasma cells. Systemic work-up ruled out the possibility of POEMS syndrome, lymphoma, and multiple myeloma, leading to a final diagnosis of solitary hyoid plasmacytoma with UCD. The patient underwent partial hyoid resection and selective neck dissection, followed by intensity-modulated radiotherapy. 99mTc-MDP single-photon emission computed tomography/CT reevaluation showed neither local recurrence nor distant bone metastasis at the 40-mo follow-up.
CONCLUSION The diagnostic process and differential diagnosis of this rare case provided valuable educational information to clinicians.
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Affiliation(s)
- Yan-Hui Zhang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai 200080, China
| | - Yi-Feng He
- Department of Radiology, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai 200080, China
| | - Hao Yue
- Department of Pathology, Shanghai Cancer Center, Fudan University, Shanghai 200032, China
| | - Yue-Ni Zhang
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, The Fourth Affiliated Hospital of Harbin Medical University, Harbin 150028, Heilongjiang Province, China
| | - Lei Shi
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, The Fourth Affiliated Hospital of Harbin Medical University, Harbin 150028, Heilongjiang Province, China
| | - Bin Jin
- Department of Otolaryngology-Head and Neck Surgery, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai 200080, China
| | - Pin Dong
- Department of Otolaryngology-Head and Neck Surgery, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai 200080, China
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González García A, Fernández-Martín J, Robles Marhuenda Á. Idiopathic multicentric Castleman disease and associated autoimmune and autoinflammatory conditions: practical guidance for diagnosis. Rheumatology (Oxford) 2022; 62:1426-1435. [PMID: 35997567 PMCID: PMC10070070 DOI: 10.1093/rheumatology/keac481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/04/2022] [Accepted: 08/11/2022] [Indexed: 11/13/2022] Open
Abstract
Idiopathic multicentric Castleman disease (iMCD) is an infrequent and life-threatening disorder characterised by systemic inflammatory symptoms, generalised lymphadenopathy, polyclonal lymphocyte proliferation, and organ dysfunction caused by a hyperinflammatory state. It accounts for one third to one half of all multicentric Castleman disease (MCD) cases. iMCD is often associated with autoimmune manifestations that may precede the iMCD diagnosis, be identified at the same time or follow it. In addition, iMCD may also coincide with a number of autoimmune diseases (such as psoriasis or myasthenia gravis) or autoinflammatory diseases (such as familial Mediterranean fever). Moreover, diverse inflammatory disorders, such as rheumatoid arthritis, systemic lupus erythematosus, adult-onset Still disease, systemic juvenile idiopathic arthritis, immunoglobulin (IgG4) related disease, or the recently described VEXAS syndrome, can present clinical features or lymphadenopathy with histopathological "Castleman-like" findings compatible with those of iMCD. Given the iMCD clinical heterogeneity and the overlap with other autoimmune or autoinflammatory disorders, iMCD diagnosis can be challenging. In this review, we explore the overlap between iMCD and inflammatory diseases and provide practical guidance on iMCD diagnosis in order to avoid misdiagnosis and confusion with other autoimmune or autoinflammatory conditions.
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Affiliation(s)
- Andrés González García
- Systemic Autoimmune and Orphan Diseases Unit, Department of Internal Medicine, Hospital Universitario Ramón y Cajal, IRYCIS, Madrid, Spain
| | - Julián Fernández-Martín
- Internal Medicine Department, Hospital Álvaro Cunqueiro, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Ángel Robles Marhuenda
- Autoimmune Diseases Unit of the Internal Medicine Service, Hospital La Paz, Madrid, Spain
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Nishimura Y, Nishimura MF, Sato Y. International definition of iMCD-TAFRO: future perspectives. J Clin Exp Hematop 2022; 62:73-78. [PMID: 35474036 PMCID: PMC9353848 DOI: 10.3960/jslrt.21037] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Since thrombocytopenia, anasarca, fever, reticulin fibrosis, renal insufficiency, and organomegaly (TAFRO) syndrome was first proposed in 2010, there has been considerable progress in this area, particularly regarding its association with idiopathic multicentric Castleman disease (iMCD). TAFRO syndrome is a heterogeneous category with a constellation of symptoms that can develop in the setting of infection, rheumatologic disorder, malignancy, and iMCD. Now, iMCD with TAFRO symptoms is subtyped as iMCD-TAFRO. However, confusion between TAFRO syndrome and iMCD-TAFRO remains. In this article, we discuss the current understanding and future research agenda of TAFRO syndrome and iMCD-TAFRO from the perspective of its new validated international definition.
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Affiliation(s)
- Yoshito Nishimura
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan.,Department of Medicine, John A. Burns School of Medicine, University of Hawai'i, Honolulu, HI, USA
| | - Midori Filiz Nishimura
- Department of Pathology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Yasuharu Sato
- Division of Pathophysiology, Okayama University Graduate School of Health Sciences, Okayama, Japan
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Facchetti F, Simbeni M, Lorenzi L. Follicular dendritic cell sarcoma. Pathologica 2021; 113:316-329. [PMID: 34837090 PMCID: PMC8720404 DOI: 10.32074/1591-951x-331] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 06/21/2021] [Indexed: 12/17/2022] Open
Abstract
Follicular dendritic cells (FDC) are mesenchymal-derived dendritic cells located in B-follicles where they play a pivotal role in triggering and maintaining B-cell adaptive immune response. In 1986 Dr. Juan Rosai first reported a series of neoplasms showing features of FDC and defined it as Follicular Dendritic Cell Tumor, subsequently renamed as "sarcoma" (FDCS). In its seminal and subsequent articles Rosai and colleagues highlighted the heterogeneous microscopic appearance of FDCS and its immunohistochemical and ultrastructural features. FDCS mostly occurs in extranodal sites (79.4% of cases) and lymph nodes (15.1%); in about 7%-10% of cases it is associated with hyaline-vascular Castleman disease. Given its significant growth pattern and cytological variability, FDCS can be confused with various neoplasms and even inflammatory processes. The diagnosis requires the use of a broad spectrum of FDC markers (e.g. CD21, CD23, CD35, clusterin, CXCL13, podoplanin), particularly considering that tumor antigen-loss is frequent. The inflammatory-pseudotumor-like (IPT-like) variant of FDCS, in addition to its peculiar histopathological and clinical features, is characterized by positivity of tumor cells for Epstein-Barr virus, representing a diagnostic requisite. No distinctive genetic and molecular anomalies have been identified in FDCS. It often carries an aberrant clonal karyotype and chromosomal structural alterations, frequently involving onco-suppressor genes. Direct or next generation sequencing showed alterations on genes belonging to the NF-κB regulatory pathway and cell-cycle regulators. In contrast to hematopoietic-derived histiocytic and dendritic cells tumors, FDCS typically lacks mutations in genes related to the MAPK pathway. FDCS recurs locally in 28% and metastasizes in 27% of cases. Extent of the disease, surgical resectability and histopathological features are significantly associated with the outcome. IPT-like FDCS behaves as an indolent tumor, even if it often recurs locally over years. Complete surgical excision is the gold standard of treatment. Data on targeted therapies (e.g.: tyrosine kinase inhibitors) or immune checkpoint inhibitors are very limited and responses are variable. A better understanding of the molecular drivers of this tumor may lead to potential new therapeutic strategies.
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Affiliation(s)
- Fabio Facchetti
- Department of Molecular and Translational Medicine, Section of Pathology, University of Brescia, Spedali Civili, Brescia (Italy)
| | - Matteo Simbeni
- Department of Molecular and Translational Medicine, Section of Pathology, University of Brescia, Spedali Civili, Brescia (Italy)
| | - Luisa Lorenzi
- Department of Molecular and Translational Medicine, Section of Pathology, University of Brescia, Spedali Civili, Brescia (Italy)
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Zhou T, Wang HW, Pittaluga S, Jaffe ES. Multicentric Castleman disease and the evolution of the concept. Pathologica 2021; 113:339-353. [PMID: 34837092 PMCID: PMC8720411 DOI: 10.32074/1591-951x-351] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 08/25/2021] [Indexed: 12/29/2022] Open
Abstract
The term multicentric Castleman disease (MCD) encompasses a spectrum of conditions that share some overlapping clinicopathological manifestations. The fundamental pathogenetic mechanism involves dysregulated cytokine activity, causing systemic inflammatory symptoms as well as lymphadenopathy. Some of the histological changes in lymph nodes resemble the histology of unicentric Castleman disease (UCD). However, based on current knowledge, the use of this shared nomenclature is unfortunate, since these disorders differ in pathogenesis and prognosis. In Kaposi sarcoma-associated herpesvirus (KSHV)-associated MCD, cytokine overactivity is caused by viral products, which can also lead to atypical lymphoproliferations and potential progression to lymphoma. In idiopathic MCD, the hypercytokinemia can result from various mechanisms, which ultimately lead to different constellations of clinical presentations and varied pathology in lymphoid tissues. The authors review the evolving concepts and definitions of the various conditions under the eponym of multicentric Castleman disease.
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Affiliation(s)
- Ting Zhou
- Hematopathology Section, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Hao-Wei Wang
- Hematopathology Section, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Stefania Pittaluga
- Hematopathology Section, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Elaine S Jaffe
- Hematopathology Section, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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