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Moe K, Maa HC, Lin ST, Kuo YJ. Follicular Dendritic Cell Sarcoma of the Parotid Gland: A Case Report and Review of Literature. Head Neck Pathol 2024; 18:55. [PMID: 38896216 PMCID: PMC11187013 DOI: 10.1007/s12105-024-01659-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 05/23/2024] [Indexed: 06/21/2024]
Abstract
Follicular dendritic cell sarcoma of the parotid gland is an extremely rare tumor, with only six cases reported in the literature. A 51-year-old female had a 3.0 cm tumor resected from the right parotid gland. The tumor exhibited solid sheets, whorls, fascicular pattern, and syncytium appearance with an indistinct cell border. The lymphocytic infiltrate was sprinkled throughout the neoplasm, with focal prominent perivascular cuffing. Immunohistochemically, it was positive for follicular dendritic cell markers CD21, CD23, and CD35. We aim to enhance the understanding of this neoplasm and alert pathologists to this rare entity in this region to avoid misdiagnosis.
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Affiliation(s)
- KyuKyu Moe
- Department of Pathology, Cardinal Tien Hospital, University of Medicine, Mandalay, Myanmar
| | - Hung-Chune Maa
- School of Medicine, Fu-Jen Catholic University, New Taipei, Taiwan
| | - Shih-Tsang Lin
- School of Medicine, Fu-Jen Catholic University, New Taipei, Taiwan
| | - Ying-Ju Kuo
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, No. 201, Section 2, Shipai Road, Taipei, 11217, Taiwan.
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
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2
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Agüero R, Reculé F, Pérez J, Castro A. Extranodal Follicular Dendritic Cell Sarcoma Presenting on the Skin. Am J Dermatopathol 2024; 46:218-222. [PMID: 38457683 DOI: 10.1097/dad.0000000000002639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
Abstract
ABSTRACT Follicular dendritic cell sarcoma is a rare intermediate-grade malignancy characterized by a proliferation of ovoid to spindle-shaped cells with morphologic and immunophenotypic features similar to normal follicular dendritic cells. It may develop in lymph nodes or extranodal sites. Its presentation in extranodal tissues is a diagnostic challenge. It requires a high index of suspicion because follicular dendritic cell markers are not included in the routine immunohistochemical panels used for differential diagnosis. In an extensive review of the English literature, we found 3 cases of follicular dendritic cell sarcoma developing on the skin. We report a case of a primary cutaneous follicular dendritic cell sarcoma in a 28-year-old man, which presented as a 6-mm skin-colored nodule on the right forearm. We describe the morphologic and immunohistochemical features and a review of the literature.
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Affiliation(s)
- Rosario Agüero
- Facultad de Medicina Clínica Alemana - Universidad del Desarrollo, Santiago, Chile
| | - Francisca Reculé
- Dermatology Service, Hospital Clínico de la Fuerza Aérea, Santiago, Chile
- Dermatology Service, Facultad de Medicina Clínica Alemana - Universidad del Desarrollo, Santiago, Chile ; and
| | - Jaime Pérez
- Dermatology Service, Facultad de Medicina Clínica Alemana - Universidad del Desarrollo, Santiago, Chile ; and
| | - Alex Castro
- Department of Pathology, Facultad de Medicina Clínica Alemana - Universidad del Desarrollo, Santiago, Chile
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3
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Baber A, Legendre P, Palmic P, Lupo-Mansuet A, Burroni B, Azoulay C, Szwebel TA, Costedoat-Chalumeau N, Leroy K, Blons H, Blay JY, Boudou-Rouquette P, Terrier B. EBV-Positive Inflammatory Follicular Dendritic Cell Sarcoma of the Spleen: Report of an Aggressive Form With Molecular Characterization. Int J Surg Pathol 2024; 32:150-154. [PMID: 37157817 DOI: 10.1177/10668969231168345] [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] [Indexed: 05/10/2023]
Abstract
EBV-positive inflammatory follicular dendritic cell sarcoma (EBV+ inflammatory FDCS) is a rare neoplasm almost exclusively located in the spleen or liver. It is characterized by a proliferation of EBV-positive spindle-shaped cells bearing follicular dendritic cell markers, associated with an abundant lymphoplasmacytic infiltrate. EBV+ inflammatory FDCS is often asymptomatic or responsible for mild symptoms. It usually displays an indolent course and its prognosis is excellent after tumor removal, although relapsing and metastatic forms exist. Herein, we describe an aggressive form of splenic EBV+ inflammatory FDCS in a 79-year-old woman presenting with abdominal pain, deterioration of general health status, major inflammatory syndrome, and symptomatic hypercalcemia. A splenectomy was performed leading to a rapid improvement in her clinical condition and normalization of laboratory abnormalities. Unfortunately, her symptoms and laboratory abnormalities reappeared 4 months later. Computed tomography showed a mass in the splenectomy site and multiple liver and peritoneal nodules. Further analyses were performed on tumor tissue and showed positive phospho-ERK staining of tumoral cells indicating activation of MAPK pathway. Inactivating mutations were found on CDKN2A and NF1 genes. Subsequently, the patient's condition deteriorated rapidly. Since interleukin-6 levels were dramatically increased, tocilizumab was used but only had a transient effect on the patient's symptoms and inflammatory syndrome. Antitumor agent gemcitabine was initiated but her clinical condition continued to deteriorate and the patient died 2 weeks later. The management of aggressive forms of EBV+ inflammatory FDCS remains challenging. However, since these tumors seem to display genetic alterations, better characterization could lead to molecular targeted therapies.
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Affiliation(s)
- Alistair Baber
- Department of Internal Medicine, Assistance Publique-Hôpitaux de Paris, Cochin Hospital, University of Paris, Paris, France
| | - Paul Legendre
- Department of Internal Medicine, Assistance Publique-Hôpitaux de Paris, Cochin Hospital, University of Paris, Paris, France
| | - Patricia Palmic
- Department of Pathology, Assistance Publique-Hôpitaux de Paris, Cochin Hospital, University of Paris, Paris, France
| | - Audrey Lupo-Mansuet
- Department of Pathology, Assistance Publique-Hôpitaux de Paris, Cochin Hospital, University of Paris, Paris, France
| | - Barbara Burroni
- Department of Pathology, Assistance Publique-Hôpitaux de Paris, Cochin Hospital, University of Paris, Paris, France
| | - Célia Azoulay
- Department of Internal Medicine, Assistance Publique-Hôpitaux de Paris, Cochin Hospital, University of Paris, Paris, France
| | - Tali-Anne Szwebel
- Department of Internal Medicine, Assistance Publique-Hôpitaux de Paris, Cochin Hospital, University of Paris, Paris, France
| | - Nathalie Costedoat-Chalumeau
- Department of Internal Medicine, Assistance Publique-Hôpitaux de Paris, Cochin Hospital, University of Paris, Paris, France
| | - Karen Leroy
- Department of Medical Biology, Genomic Medicine and Physiology, Assistance Publique-Hôpitaux de Paris, European Hospital Georges Pompidou, University of Paris, Paris, France
| | - Hélène Blons
- Department of Medical Biology, Genomic Medicine and Physiology, Assistance Publique-Hôpitaux de Paris, European Hospital Georges Pompidou, University of Paris, Paris, France
| | - Jean-Yves Blay
- Léon Bérard Oncology Center, Claude Bernard Lyon 1 University, Lyon, France
| | - Pascaline Boudou-Rouquette
- Department of Oncology, Assistance Publique-Hôpitaux de Paris, Cochin Hospital, University of Paris, Paris, France
| | - Benjamin Terrier
- Department of Internal Medicine, Assistance Publique-Hôpitaux de Paris, Cochin Hospital, University of Paris, Paris, France
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4
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Rerkpichaisuth V, Hung YP. Mesenchymal tumours of the pleura: review and update. Histopathology 2024; 84:163-182. [PMID: 37691389 DOI: 10.1111/his.15035] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/10/2023] [Accepted: 08/14/2023] [Indexed: 09/12/2023]
Abstract
Primary mesenchymal tumours of the pleura are uncommon and can be diagnostically challenging due to their overlapping histopathologic and immunophenotypic features. Herein we discuss selected mesenchymal tumours of the pleura, including solitary fibrous tumour, calcifying fibrous tumour, desmoid fibromatosis, synovial sarcoma, schwannoma, malignant peripheral nerve sheath tumour, inflammatory myofibroblastic tumour, follicular dendritic cell sarcoma, epithelioid hemangioendothelioma, and desmoplastic small round cell tumour. We review their clinicopathologic characteristics, along with an update on the relevant immunohistochemical and molecular features.
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Affiliation(s)
- Vilasinee Rerkpichaisuth
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Pathology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Yin P Hung
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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5
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Zheng Y, Cao D, Shen Y, Xu L, Feng Q, Qiang W, Zhao E. Progressive abdominal pain with acute exacerbation due to retroperitoneal follicular dendritic cell sarcoma: a case report with targeted genomic sequencing analysis. Acta Chir Belg 2023; 123:707-711. [PMID: 36398705 DOI: 10.1080/00015458.2022.2145731] [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: 03/18/2022] [Accepted: 11/05/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND Follicular dendritic cell sarcoma (FDCS) is a rare malignancy that arises from follicular dendritic cells and typically presents as a slow-growing painless mass without specific symptoms. Here we report an unusual case of a 55-year-old female with retroperitoneal FDCS who presented with progressive abdominal pain onset and acute exacerbation. METHODS On CTA, a middle-upper abdominal mass (58*40 mm) was shown with multiple enlarged lymph nodes. After en-bloc resection of the tumor, the patient recovered completely from her symptoms and was discharged without complication. One month later, the patient returned for follow-up and the relevant tests were completed. RESULTS In this case, CA724 elevated significantly and seemed to be associated with tumor progression. The results of positron emission tomography/computed tomography (PET/CT) and radiological examinations, including magnetic resonance imaging (MRI) and computed tomography angiography (CTA), were discussed to improve our understanding of diagnostic tools on FDCS. Targeted genomic sequencing analysis revealed three novel gene mutations, EPHA3 (nonsense mutation), DDR2 (SNV), and BIRC3 (InDel). CONCLUSION We reported an unusual case of retroperitoneal FDCS with acute exacerbated abdominal pain. The interpretations of CA724, PET/CT, as well as imaging results deserve further investigation in FDCS. Genomic sequencing revealed three novel gene mutations in FDCS, including EPHA3 (nonsense mutation), DDR2 (SNV), and BIRC3 (InDel).
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Affiliation(s)
- Yihan Zheng
- Department of Gastrointestinal Surgery, Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dongxing Cao
- Department of Gastrointestinal Surgery, Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanying Shen
- Department of Pathology, Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lian Xu
- Department of Nuclear Medicine, Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qi Feng
- Department of Radiology, Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenyue Qiang
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Enhao Zhao
- Department of Gastrointestinal Surgery, Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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6
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AbdullGaffar B, Keloth T. Extranodal Mesenteric Follicular Dendritic Cell Sarcoma Expressing Keratin Antigens: What Pitfalls Initiate Diagnostic Clues. Int J Surg Pathol 2023; 31:1308-1313. [PMID: 36572968 DOI: 10.1177/10668969221143470] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Extranodal follicular dendritic cell sarcomas are infrequent diagnostically challenging tumors. Because of their rarity, heterogeneous histomorphologic features and variable histologic grades a significant number of extranodal lesions are prone to be misdiagnosed. Even though they have a characteristic immunoprofile, expression of a range of nonspecific markers is well documented. Even though they are typically negative for keratins, few authors have reported lesions expressing keratin. Keratin expressing tumors are more likely to be misinterpreted by pathologists further deterring their inclusion in the differential diagnosis. We report an intraabdominal mesenteric follicular dendritic cell sarcoma in a 44-year-old male that immunophenotypically expressed keratin antigens. The lesion showed a high-grade pleomorphic epithelioid appearance and the initial differential diagnosis included lymphoma, sarcomas, melanoma, and carcinomas. Follicular dendritic cell sarcoma was not considered. Expression of epithelial membrane antigen and keratin further deterred the diagnosis which was reached only after extensive use of immunomarkers. The tumor cells expressed CD21, CD23, and D2-40. Morphologically, the tumor showed some thymoma-like features with occasional TDT-expressing background T-lymphocytes. These features were hints to reconsider our differential diagnosis to include follicular dendritic cell tumors. Awareness of this aberrant staining of epithelial immunomarkers and attention to certain clues should encourage pathologists to consider this entity. Speculative assumptions may explain this unusual keratin expression in some lesions. The histomorphologic and immunohistochemical heterogeneity may suggest different variants and grades of follicular dendritic cell sarcomas. The prevalence, importance, and histogenesis of keratin expression in follicular dendritic cell sarcomas warrant further studies.
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Affiliation(s)
| | - Tasnim Keloth
- Pathology Section, Dubai Hospital, Dubai, United Arab Emirates
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Frigola G, Bühler M, Marginet M, Enjuanes A, Nadeu F, Papaleo N, Salido M, Haralambieva E, Alamo J, Garcia-Bragado F, Álvarez R, Ramos R, Aldecoa I, Campo E, Colomo L, Balagué O. MYC and TP53 Alterations but Not MAPK Pathway Mutations Are Common Oncogenic Mechanisms in Follicular Dendritic Cell Sarcomas. Arch Pathol Lab Med 2023; 147:896-906. [PMID: 36355424 DOI: 10.5858/arpa.2021-0517-oa] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/23/2022] [Indexed: 07/28/2023]
Abstract
CONTEXT.— Despite their stromal origin, follicular dendritic cells (FDCs) share many functions with hematopoietic system cells. FDC neoplasms are currently classified by the World Health Organization along with those of a histiocytic nature. However, the molecular alterations driving oncogenesis in FDC sarcomas (FDCSs) are beginning to be unveiled and do not seem to concur with those described in histiocytic neoplasms, namely MAPK pathway activation. OBJECTIVE.— To identify molecular alterations driving tumorigenesis in FDCS. DESIGN.— We investigated the role of MYC and TP53 in FDC-derived tumor oncogenesis and assessed comprehensively the status of the MAPK pathway in 16 FDCSs, 6 inflammatory pseudotumor (IPT)-like FDCSs, and 8 IPTs. RESULTS.— MYC structural alterations (both amplifications and rearrangements) were identified in 5 of 14 FDCSs (35.7%), all associated with MYC overexpression. TP53 mutations were identified in 4 of 14 FDCSs (28.6%), all of which displayed intense and diffuse p53 expression. None of these alterations were identified in any IPT-like FDCSs or in IPT cases. No MAPK pathway gene alterations were identified in any of the cases studied. CONCLUSIONS.— The presence of MYC and TP53 alterations and the lack of association with Epstein-Barr virus segregate classical FDCS from IPT-like FDCS, pointing at different oncogenic mechanisms in both entities. Our results suggest a possible oncogenic role of MYC and TP53 alterations in FDCS. The absence of MAPK pathway alterations confirms the lack of a significant role of this pathway in the oncogenesis of FDC-derived neoplasms.
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Affiliation(s)
- Gerard Frigola
- From the Department of Pathology, Hospital Clínic of Barcelona, Barcelona, Spain (Frigola, Bühler, Marginet, Alamo, Aldecoa, Campo, Balagué)
- The Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain (Frigola, Bühler, Enjuanes, Nadeu, Campo, Balagué)
| | - Marco Bühler
- From the Department of Pathology, Hospital Clínic of Barcelona, Barcelona, Spain (Frigola, Bühler, Marginet, Alamo, Aldecoa, Campo, Balagué)
- The Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain (Frigola, Bühler, Enjuanes, Nadeu, Campo, Balagué)
- The Department of Pathology, University Hospital Zürich, Zürich, Switzerland (Bühler, Haralambieva)
| | - Marta Marginet
- From the Department of Pathology, Hospital Clínic of Barcelona, Barcelona, Spain (Frigola, Bühler, Marginet, Alamo, Aldecoa, Campo, Balagué)
| | - Anna Enjuanes
- The Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain (Frigola, Bühler, Enjuanes, Nadeu, Campo, Balagué)
| | - Ferran Nadeu
- The Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain (Frigola, Bühler, Enjuanes, Nadeu, Campo, Balagué)
- The Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain (Nadeu, Campo, Balagué)
| | - Natalia Papaleo
- The Department of Pathology, Parc Taulí Hospital Universitari, Sabadell, Spain (Papaleo)
- The Department of Pathology, Hospital del Mar, Barcelona, Spain (Papaleo, Salido, Colomo)
- The Department of Diagnostic Fundamentals, University Pompeu Fabra, Barcelona, Spain (Papaleo, Colomo)
| | - Marta Salido
- The Department of Pathology, Hospital del Mar, Barcelona, Spain (Papaleo, Salido, Colomo)
| | - Eugenia Haralambieva
- The Department of Pathology, University Hospital Zürich, Zürich, Switzerland (Bühler, Haralambieva)
| | - José Alamo
- From the Department of Pathology, Hospital Clínic of Barcelona, Barcelona, Spain (Frigola, Bühler, Marginet, Alamo, Aldecoa, Campo, Balagué)
| | - Federico Garcia-Bragado
- The Department of Pathology, Complejo Hospitalario de Navarra, Pamplona, Spain (Garcia-Bragado)
| | - Ramiro Álvarez
- The Department of Pathology, Hospital Universitario Miguel Servet, Zaragoza, Spain (Álvarez)
| | - Rafael Ramos
- The Department of Pathology, Hospital Universitari Son Espases, Palma de Mallorca, Spain (Ramos)
| | - Iban Aldecoa
- From the Department of Pathology, Hospital Clínic of Barcelona, Barcelona, Spain (Frigola, Bühler, Marginet, Alamo, Aldecoa, Campo, Balagué)
| | - Elías Campo
- From the Department of Pathology, Hospital Clínic of Barcelona, Barcelona, Spain (Frigola, Bühler, Marginet, Alamo, Aldecoa, Campo, Balagué)
- The Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain (Frigola, Bühler, Enjuanes, Nadeu, Campo, Balagué)
- The Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain (Nadeu, Campo, Balagué)
- The Department of Clinical Fundamentals, University of Barcelona, Barcelona, Spain (Campo, Balagué)
| | - Lluis Colomo
- The Department of Pathology, Hospital del Mar, Barcelona, Spain (Papaleo, Salido, Colomo)
- The Department of Diagnostic Fundamentals, University Pompeu Fabra, Barcelona, Spain (Papaleo, Colomo)
| | - Olga Balagué
- From the Department of Pathology, Hospital Clínic of Barcelona, Barcelona, Spain (Frigola, Bühler, Marginet, Alamo, Aldecoa, Campo, Balagué)
- The Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain (Frigola, Bühler, Enjuanes, Nadeu, Campo, Balagué)
- The Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain (Nadeu, Campo, Balagué)
- The Department of Clinical Fundamentals, University of Barcelona, Barcelona, Spain (Campo, Balagué)
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Wang Y, Wang Y, Liu B, Gao X, Li Y, Li F, Zhou H. Mapping the tumor microenvironment in clear cell renal carcinoma by single-cell transcriptome analysis. Front Genet 2023; 14:1207233. [PMID: 37533434 PMCID: PMC10392130 DOI: 10.3389/fgene.2023.1207233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 07/06/2023] [Indexed: 08/04/2023] Open
Abstract
Introduction: Clear cell renal cell carcinoma (ccRCC) is associated with unfavorable clinical outcomes. To identify viable therapeutic targets, a comprehensive understanding of intratumoral heterogeneity is crucial. In this study, we conducted bioinformatic analysis to scrutinize single-cell RNA sequencing data of ccRCC tumor and para-tumor samples, aiming to elucidate the intratumoral heterogeneity in the ccRCC tumor microenvironment (TME). Methods: A total of 51,780 single cells from seven ccRCC tumors and five para-tumor samples were identified and grouped into 11 cell lineages using bioinformatic analysis. These lineages included tumor cells, myeloid cells, T-cells, fibroblasts, and endothelial cells, indicating a high degree of heterogeneity in the TME. Copy number variation (CNV) analysis was performed to compare CNV frequencies between tumor and normal cells. The myeloid cell population was further re-clustered into three major subgroups: monocytes, macrophages, and dendritic cells. Differential expression analysis, gene ontology, and gene set enrichment analysis were employed to assess inter-cluster and intra-cluster functional heterogeneity within the ccRCC TME. Results: Our findings revealed that immune cells in the TME predominantly adopted an inflammatory suppression state, promoting tumor cell growth and immune evasion. Additionally, tumor cells exhibited higher CNV frequencies compared to normal cells. The myeloid cell subgroups demonstrated distinct functional properties, with monocytes, macrophages, and dendritic cells displaying diverse roles in the TME. Certain immune cells exhibited pro-tumor and immunosuppressive effects, while others demonstrated antitumor and immunostimulatory properties. Conclusion: This study contributes to the understanding of intratumoral heterogeneity in the ccRCC TME and provides potential therapeutic targets for ccRCC treatment. The findings emphasize the importance of considering the diverse functional roles of immune cells in the TME for effective therapeutic interventions.
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Affiliation(s)
- Yuxiong Wang
- Department of Urology, The First Hospital of Jilin University, Jilin, China
| | - Yishu Wang
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Jilin, China
| | - Bin Liu
- Department of Urology, The First Hospital of Jilin University, Jilin, China
| | - Xin Gao
- Department of Urology, The First Hospital of Jilin University, Jilin, China
| | - Yunkuo Li
- Department of Urology, The First Hospital of Jilin University, Jilin, China
| | - Faping Li
- Department of Urology, The First Hospital of Jilin University, Jilin, China
| | - Honglan Zhou
- Department of Urology, The First Hospital of Jilin University, Jilin, China
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Sichel V, Sarah G, Girollet N, Laucou V, Roux C, Roques M, Mournet P, Cunff LL, Bert P, This P, Lacombe T. Chimeras in Merlot grapevine revealed by phased assembly. BMC Genomics 2023; 24:396. [PMID: 37452318 PMCID: PMC10347889 DOI: 10.1186/s12864-023-09453-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 06/09/2023] [Indexed: 07/18/2023] Open
Abstract
Chimerism is the phenomenon when several genotypes coexist in a single individual. Used to understand plant ontogenesis they also have been valorised through new cultivar breeding. Viticulture has been taking economic advantage out of chimeras when the variant induced an important modification of wine type such as berry skin colour. Crucial agronomic characters may also be impacted by chimeras that aren't identified yet. Periclinal chimera where the variant has entirely colonised a cell layer is the most stable and can be propagated through cuttings. In grapevine, leaves are derived from both meristem layers, L1 and L2. However, lateral roots are formed from the L2 cell layer only. Thus, comparing DNA sequences of roots and leaves allows chimera detection. In this study we used new generation Hifi long reads sequencing, recent bioinformatics tools and trio-binning with parental sequences to detect periclinal chimeras on 'Merlot' grapevine cultivar. Sequencing of cv. 'Magdeleine Noire des Charentes' and 'Cabernet Franc', the parents of cv. 'Merlot', allowed haplotype resolved assembly. Pseudomolecules were built with a total of 33 to 47 contigs and in few occasions a unique contig for one chromosome. This high resolution allowed haplotype comparison. Annotation was transferred from PN40024 VCost.v3 to all pseudomolecules. After strong selection of variants, 51 and 53 'Merlot' specific periclinal chimeras were found on the Merlot-haplotype-CF and Merlot-haplotype-MG respectively, 9 and 7 been located in a coding region. A subset of positions was analysed using Molecular Inversion Probes (MIPseq) and 69% were unambiguously validated, 25% are doubtful because of technological noise or weak depth and 6% invalidated. These results open new perspectives on chimera detection as an important resource to improve cultivars through clonal selection or breeding.
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Affiliation(s)
- V. Sichel
- UMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, F-34398 France
| | - G. Sarah
- UMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, F-34398 France
- UMT Geno-Vigne®, IFV-INRAE-Institut Agro, Montpellier, F-34398 France
| | - N. Girollet
- EGFV, Université de Bordeaux, Bordeaux-Sciences Agro, INRAe, ISVV, 210 Chemin de Leysotte, F-33882 Villenave d’Ornon, France
| | - V. Laucou
- UMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, F-34398 France
- UMT Geno-Vigne®, IFV-INRAE-Institut Agro, Montpellier, F-34398 France
| | - C. Roux
- UMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, F-34398 France
- UMT Geno-Vigne®, IFV-INRAE-Institut Agro, Montpellier, F-34398 France
| | - M. Roques
- Institut Français de la Vigne et du Vin, Montpellier, F-34398 France
- UMT Geno-Vigne®, IFV-INRAE-Institut Agro, Montpellier, F-34398 France
| | - P. Mournet
- UMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, F-34398 France
- UMR AGAP Institut, CIRAD, Montpellier, F-34398 France
| | - L. Le Cunff
- Institut Français de la Vigne et du Vin, Montpellier, F-34398 France
- UMT Geno-Vigne®, IFV-INRAE-Institut Agro, Montpellier, F-34398 France
| | - P.F. Bert
- EGFV, Université de Bordeaux, Bordeaux-Sciences Agro, INRAe, ISVV, 210 Chemin de Leysotte, F-33882 Villenave d’Ornon, France
| | - P. This
- UMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, F-34398 France
- UMT Geno-Vigne®, IFV-INRAE-Institut Agro, Montpellier, F-34398 France
| | - T. Lacombe
- UMR AGAP Institut, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, F-34398 France
- UMT Geno-Vigne®, IFV-INRAE-Institut Agro, Montpellier, F-34398 France
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10
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Boyraz B, Post MD, Hasserjian RP, Oliva E. Follicular Dendritic Cell Sarcoma of Uterine Corpus: Report of 2 Cases. Int J Gynecol Pathol 2023; 42:390-397. [PMID: 36044301 DOI: 10.1097/pgp.0000000000000903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Follicular dendritic cell sarcoma is a rare dendritic/histiocytic tumor of intermediate malignant potential, which often involves extranodal sites, most commonly the gastrointestinal tract and mediastinum with only 5 cases reported in the female genital tract. We present the clinical and pathologic features of 2 such examples arising in the uterine corpus. Both patients (63 and 72-yr old) presented with postmenopausal bleeding and underwent an endometrial biopsy diagnostic of follicular dendritic cell sarcoma that was followed by hysterectomy. The tumors were polypoid, 3.5 and 5.0 cm, and were confined to the endometrium. Microscopically, ovoid to round to spindled tumor cells with pale eosinophilic cytoplasm and vesicular nuclei were arranged predominantly in sheets with an accompanying lymphocyte-rich inflammatory infiltrate. The tumor cells were positive for CD35, CD23, D2-40 in both tumors and additionally positive for CD21 in 1 tumor, all highlighting cell bodies and processes. Patients were alive without evidence of disease at 1 and 4 years with no adjuvant treatment. These cases highlight the importance of entertaining a broad differential diagnosis in lesions with epithelioid and/or spindled morphology involving the uterus.
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11
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Cassidy DP, Rosenberg AE, Poveda J, Velez-Torres J, Chapman J. Nonlymphoid Hematopoietic Diseases Presenting in Bone, Soft Tissue, and Other Extranodal Sites. Arch Pathol Lab Med 2021; 146:1144-1159. [DOI: 10.5858/arpa.2021-0229-ra] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2021] [Indexed: 11/06/2022]
Abstract
Context.—
Although rare in everyday practice, the initial presentation of hematopoietic neoplasms other than lymphoma in the musculoskeletal system and other extranodal sites can generate challenging diagnostic problems for surgical pathologists.
Objective.—
To review the morphologic and immunophenotypic features of various nonlymphoid hematopoietic diseases presenting at extranodal sites, with emphasis on the inherent diagnostic pitfalls and differential diagnoses of these entities to aid surgical pathologists in their accurate recognition.
Data Sources.—
Cases reviewed herein represent both in-house and consult cases seen at our institution between 2010 and 2021.
Conclusions.—
Entities that present in this way include myeloid neoplasms and histiocytic/dendritic cell neoplasms. These tumors commonly cause nonspecific symptoms, and their histologic appearance can overlap with a variety of benign neoplasms and reactive processes. This can lead to delay in diagnosis and intervention with potentially lifesaving therapy; thus, accurate and expedient recognition is of paramount importance.
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Affiliation(s)
- Daniel P. Cassidy
- From the Division of Hematopathology (Cassidy, Poveda, Chapman), University of Miami Miller School of Medicine/Sylvester Comprehensive Cancer Center, Miami, Florida
- Division of Bone and Soft Tissue Pathology (Cassidy, Rosenberg, Velez-Torres), University of Miami Miller School of Medicine/Sylvester Comprehensive Cancer Center, Miami, Florida
- Department of Pathology and Laboratory Medicine, University of Miami Miller School of Medicine/Sylvester Comprehensive Cancer Center, Miami, Florida
| | - Andrew E. Rosenberg
- Division of Bone and Soft Tissue Pathology (Cassidy, Rosenberg, Velez-Torres), University of Miami Miller School of Medicine/Sylvester Comprehensive Cancer Center, Miami, Florida
- Department of Pathology and Laboratory Medicine, University of Miami Miller School of Medicine/Sylvester Comprehensive Cancer Center, Miami, Florida
| | - Julio Poveda
- From the Division of Hematopathology (Cassidy, Poveda, Chapman), University of Miami Miller School of Medicine/Sylvester Comprehensive Cancer Center, Miami, Florida
- Department of Pathology and Laboratory Medicine, University of Miami Miller School of Medicine/Sylvester Comprehensive Cancer Center, Miami, Florida
| | - Jaylou Velez-Torres
- Division of Bone and Soft Tissue Pathology (Cassidy, Rosenberg, Velez-Torres), University of Miami Miller School of Medicine/Sylvester Comprehensive Cancer Center, Miami, Florida
- Department of Pathology and Laboratory Medicine, University of Miami Miller School of Medicine/Sylvester Comprehensive Cancer Center, Miami, Florida
| | - Jennifer Chapman
- From the Division of Hematopathology (Cassidy, Poveda, Chapman), University of Miami Miller School of Medicine/Sylvester Comprehensive Cancer Center, Miami, Florida
- Department of Pathology and Laboratory Medicine, University of Miami Miller School of Medicine/Sylvester Comprehensive Cancer Center, Miami, Florida
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12
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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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13
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Nishimura MF, Nishimura Y, Nishikori A, Maekawa Y, Maehama K, Yoshino T, Sato Y. Clinical and Pathological Characteristics of Hyaline-Vascular Type Unicentric Castleman Disease: A 20-Year Retrospective Analysis. Diagnostics (Basel) 2021; 11:diagnostics11112008. [PMID: 34829355 PMCID: PMC8618395 DOI: 10.3390/diagnostics11112008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/22/2021] [Accepted: 10/25/2021] [Indexed: 12/11/2022] Open
Abstract
The first case of hyaline vascular type of unicentric Castleman disease (HV-UCD) was reported more than six decades ago. Since patients with HV-UCD are often asymptomatic and this condition is generally discovered incidentally on imaging tests, most of the previous reports were of mediastinal origin detected by chest radiography. In recent years, improved access to imaging modalities has provided new insights in the diagnosis of this condition. In this study, we reviewed the detailed clinical and pathological findings of 38 HV-UCD cases (20 males and 18 females, mean age: 42.8 years). The most common site involved was the abdominal cavity (34.2%), followed by mediastinum (23.7%) and retroperitoneum (15.8%). In the abdominal cavity, mesenteric origin was the most common. The mean size of masses was 4.8 cm. Pathologically, thick hyalinized collagen fibers surrounding large blood vessels and calcification were observed (81.6% and 23.7%, respectively). Multinucleated giant cells resembling Warthin–Finkeldey cell were also observed in occasional cases (23.7%). This is a unique paper that summarizes detailed clinical and pathological findings of a large series of a rare disease. The clinical information presented in this paper is more plausible than previous views and is useful for accurate diagnosis and understanding of the disease.
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Affiliation(s)
- Midori Filiz Nishimura
- Department of Pathology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan; (M.F.N.); (T.Y.)
| | - Yoshito Nishimura
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan;
- Department of Medicine, John A. Burns School of Medicine, University of Hawai’i, Honolulu, HI 96813, USA
| | - Asami Nishikori
- Division of Pathophysiology, Okayama University Graduate School of Health Sciences, Okayama 700-8558, Japan; (A.N.); (Y.M.); (K.M.)
| | - Yukina Maekawa
- Division of Pathophysiology, Okayama University Graduate School of Health Sciences, Okayama 700-8558, Japan; (A.N.); (Y.M.); (K.M.)
| | - Kanna Maehama
- Division of Pathophysiology, Okayama University Graduate School of Health Sciences, Okayama 700-8558, Japan; (A.N.); (Y.M.); (K.M.)
| | - Tadashi Yoshino
- Department of Pathology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan; (M.F.N.); (T.Y.)
| | - Yasuharu Sato
- Department of Pathology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan; (M.F.N.); (T.Y.)
- Division of Pathophysiology, Okayama University Graduate School of Health Sciences, Okayama 700-8558, Japan; (A.N.); (Y.M.); (K.M.)
- Correspondence: ; Tel.: +81-86-235-7150
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14
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Genomic landscape of cutaneous follicular lymphomas reveals 2 subgroups with clinically predictive molecular features. Blood Adv 2021; 5:649-661. [PMID: 33560380 DOI: 10.1182/bloodadvances.2020002469] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 11/20/2020] [Indexed: 01/14/2023] Open
Abstract
Primary cutaneous follicle center lymphomas (PCFCLs) are indolent B-cell lymphomas that predominantly remain skin restricted and manageable with skin-directed therapy. Conversely, secondary cutaneous involvement by usual systemic follicular lymphoma (secondary cutaneous follicular lymphoma [SCFL]) has a worse prognosis and often necessitates systemic therapy. Unfortunately, no histopathologic or genetic features reliably differentiate PCFCL from SCFL at diagnosis. Imaging may miss low-burden internal disease in some cases of SCFLs, leading to misclassification as PCFCL. Whereas usual systemic FL is well characterized genetically, the genomic landscapes of PCFCL and SCFL are unknown. Herein, we analyzed clinicopathologic and immunophenotypic data from 30 cases of PCFCL and 10 of SCFL and performed whole-exome sequencing on 18 specimens of PCFCL and 6 of SCFL. During a median follow-up of 7 years, 26 (87%) of the PCFCLs remained skin restricted. In the remaining 4 cases, systemic disease developed within 3 years of diagnosis. Although the SCFLs universally expressed BCL2 and had BCL2 rearrangements, 73% of the PCFCLs lacked BCL2 expression, and only 8% of skin-restricted PCFCLs had BCL2 rearrangements. SCFLs showed low proliferation fractions, whereas 75% of PCFCLs had proliferation fractions >30%. Of the SCFLs, 67% had characteristic loss-of-function CREBBP or KMT2D mutations vs none in skin-restricted PCFCL. Both SCFL and skin-restricted PCFCL showed frequent TNFRSF14 loss-of-function mutations and copy number loss at chromosome 1p36. These data together establish PCFCL as a unique entity with biological features distinct from usual systemic FL and SCFL. We propose 3 criteria based on BCL2 rearrangement, chromatin-modifying gene mutations (CREBBP, KMT2D, EZH2, and EP300), and proliferation index to classify cutaneous FL specimens based on the likelihood of concurrent or future systemic spread.
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15
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Massoth LR, Hung YP, Ferry JA, Hasserjian RP, Nardi V, Nielsen GP, Sadigh S, Venkataraman V, Selig M, Friedmann AM, Samore W, Killian JK, Milante R, Giessinger J, Foley-Peres K, Marcus C, Severson E, Duncan D, Sivakumar S, Ross JS, Desphande V, Ramkissoon SH, Vergilio JA, Louissaint A, Zukerberg LR, Williams EA. Histiocytic and Dendritic Cell Sarcomas of Hematopoietic Origin Share Targetable Genomic Alterations Distinct from Follicular Dendritic Cell Sarcoma. Oncologist 2021; 26:e1263-e1272. [PMID: 33904632 PMCID: PMC8265357 DOI: 10.1002/onco.13801] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 03/16/2021] [Indexed: 12/18/2022] Open
Abstract
Background Histiocytic and dendritic cell neoplasms are a diverse group of tumors arising from monocytic or dendritic cell lineage. Whereas the genomic features for Langerhans cell histiocytosis and Erdheim‐Chester disease have been well described, other less common and often aggressive tumors in this broad category remain poorly characterized, and comparison studies across the World Health Organization diagnostic categories are lacking. Methods Tumor samples from a total of 102 patient cases within four major subtypes of malignant histiocytic and dendritic cell neoplasms, including 44 follicular dendritic cell sarcomas (FDCSs), 41 histiocytic sarcomas (HSs), 7 interdigitating dendritic cell sarcomas (IDCSs), and 10 Langerhans cell sarcomas (LCSs), underwent hybridization capture with analysis of up to 406 cancer‐related genes. Results Among the entire cohort of 102 patients, CDKN2A mutations were most frequent across subtypes and made up 32% of cases, followed by TP53 mutations (22%). Mitogen‐activated protein kinase (MAPK) pathway mutations were present and enriched among the malignant histiocytosis (M) group (HS, IDCS, and LCS) but absent in FDCS (72% vs. 0%; p < .0001). In contrast, NF‐κB pathway mutations were frequent in FDCSs but rare in M group histiocytoses (61% vs. 12%; p < .0001). Tumor mutational burden was significantly higher in M group histiocytoses as compared with FDCSs (median 4.0/Mb vs. 2.4/Mb; p = .012). We also describe a pediatric patient with recurrent secondary histiocytic sarcoma treated with targeted therapy and interrogated by molecular analysis to identify mechanisms of therapeutic resistance. Conclusion A total of 42 patient tumors (41%) harbored pathogenic mutations that were potentially targetable by approved and/or investigative therapies. Our findings highlight the potential value of molecular testing to enable precise tumor classification, identify candidate oncogenic drivers, and define personalized therapeutic options for patients with these aggressive tumors. Implications for Practice This study presents comprehensive genomic profiling results on 102 patient cases within four major subtypes of malignant histiocytic and dendritic cell neoplasms, including 44 follicular dendritic cell sarcomas (FDCSs), 41 histiocytic sarcomas (HSs), 7 interdigitating dendritic cell sarcomas (IDCSs), and 10 Langerhans cell sarcomas (LCSs). MAPK pathway mutations were present and enriched among the malignant histiocytosis (M) group (HS, IDCS, and LCS) but absent in FDCSs. In contrast, NF‐κB pathway mutations were frequent in FDCSs but rare in M group histiocytosis. A total of 42 patient tumors (41%) harbored pathogenic mutations that were potentially targetable by approved and/or investigative therapies. Histiocytic and dendritic cell neoplasms are a diverse group of tumors arising from the monocytic or dendritic cell lineage. This article presents the molecular characteristics of the four major subtypes of malignant histiocytic and dendritic cell neoplasms, focusing on genomic alterations that could represent therapeutic targets.
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Affiliation(s)
- Lucas R Massoth
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Yin P Hung
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Judith A Ferry
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Robert P Hasserjian
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Valentina Nardi
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - G Petur Nielsen
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Sam Sadigh
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Vinayak Venkataraman
- Department of Pediatrics, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Martin Selig
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Alison M Friedmann
- Department of Pediatrics, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Wesley Samore
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | | | - Riza Milante
- Department of Dermatology, Jose R. Reyes Memorial Medical Center, Manila, Philippines
| | - Joseph Giessinger
- A.T. Still University School of Osteopathic Medicine, Mesa, Arizona, USA
| | - Kathleen Foley-Peres
- Department of Biology, Bristol Community College, Fall River, Massachusetts, USA
| | - Chelsea Marcus
- Foundation Medicine, Inc., Cambridge, Massachusetts, USA
| | - Eric Severson
- Foundation Medicine, Inc., Cambridge, Massachusetts, USA
| | - Daniel Duncan
- Foundation Medicine, Inc., Cambridge, Massachusetts, USA
| | | | - Jeffrey S Ross
- Foundation Medicine, Inc., Cambridge, Massachusetts, USA.,Department of Pathology, State University of New York Upstate Medical University, Syracuse, New York, USA
| | - Vikram Desphande
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Shakti H Ramkissoon
- Foundation Medicine, Inc., Cambridge, Massachusetts, USA.,Wake Forest Comprehensive Cancer Center and Department of Pathology, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | | | - Abner Louissaint
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Lawrence R Zukerberg
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Erik A Williams
- Foundation Medicine, Inc., Cambridge, Massachusetts, USA.,Department of Pathology, Department of Dermatology, UCSF Dermatopathology Service, University of California San Francisco, San Francisco, California, USA
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16
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Asiry S, Khader SN, Villanueva-Siles E, Hakima L. Follicular dendritic cell sarcoma: Cytomorphologic features and diagnostic challenges. Diagn Cytopathol 2021; 49:457-461. [PMID: 33418601 DOI: 10.1002/dc.24691] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 11/24/2020] [Accepted: 12/23/2020] [Indexed: 01/10/2023]
Abstract
Follicular dendritic cell sarcoma (FDCS) is a rare malignant neoplasm, which primarily arises in lymph nodes with occasional cases occurring in extranodal locations. The diagnosis is often challenging particularly on cytology fine needle aspiration due to overlapping morphologic and immunohistochemical features. We present a case of FDCS diagnosed in an otherwise asymptomatic 33-year old male. The aim of our case report is to highlight the key cytomorphologic features and discuss various differential diagnoses of this unusual entity.
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Affiliation(s)
- Saeed Asiry
- The Leopold G. Koss Division of Cytopathology, Montefiore Hospital and Medical Center/Albert Einstein College of Medicine, New York, New York, USA
| | - Samer N Khader
- Division of Cytopathology, University of Pittsburgh Medical Center (UPMC), Pittsburgh, Pennsylvania, USA
| | - Esperanza Villanueva-Siles
- The Department of Pathology, Montefiore Hospital and Medical Center/Albert Einstein College of Medicine, New York, New York, USA
| | - Laleh Hakima
- The Department of Pathology, Montefiore Hospital and Medical Center/Albert Einstein College of Medicine, New York, New York, USA
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17
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Prakash S, Padilla O, Tam W. Myeloid, mast cell, histiocytic and dendritic cell neoplasms and proliferations involving the spleen. Semin Diagn Pathol 2020; 38:144-153. [PMID: 33012564 DOI: 10.1053/j.semdp.2020.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 07/29/2020] [Indexed: 11/11/2022]
Abstract
Splenic involvement and consequent splenomegaly are usually seen as part of systemic involvement by myeloid neoplasms as well as mast cell and histiocytic neoplasms. Primary splenic involvement by these neoplasms is rare. Splenectomy is usually not performed for establishing a diagnosis of these entities. However, in rare instances, the pathologist may need to evaluate the spleen secondary to splenic rupture or palliative splenectomy to alleviate symptoms related to splenomegaly. This review article describes the clinicopathologic features of a broad group of myeloid, mastocytic, and histiocytic proliferative and neoplastic disorders.
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Affiliation(s)
- Sonam Prakash
- University of California San Francisco, Department of Laboratory Medicine, Box 0100, Parnassus Avenue, Room 569C, San Francisco, CA 94143, United States.
| | - Osvaldo Padilla
- Texas Tech University Health Sciences Center, PL Foster School of Medicine, Department of Pathology, MSC 41022, 5001 El Paso Drive, El Paso, TX 79905, United States
| | - Wayne Tam
- Weill Cornell Medicine, Department of Pathology and Laboratory Medicine, 525 E 68th Street, Starr Pavilion 715, New York, NY 10065, United States
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18
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Suster D, Suster S. The role of needle core biopsies in the evaluation of thymic epithelial neoplasms. J Am Soc Cytopathol 2020; 9:346-358. [PMID: 32467048 DOI: 10.1016/j.jasc.2020.04.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 04/15/2020] [Accepted: 04/16/2020] [Indexed: 12/14/2022]
Abstract
Thymic epithelial neoplasms are rare tumors derived from thymic epithelium that most often present as large anterior mediastinal masses. The vast majority of thymic epithelial neoplasms fall under the diagnostic category of thymoma, with a smaller percentage qualifying for a diagnosis of thymic carcinoma. The ability to render a definitive diagnosis on these tumors is generally hampered by their deep location and close proximity to vital structures, which makes biopsy sampling for histopathologic evaluation difficult. In recent years, the trend in medicine has been to opt for the least invasive procedure to obtain tissue samples that, by definition, implies also obtaining smaller and smaller biopsies, resulting in lesser amounts of tissue available for examination. In the mediastinum, the most common modalities for procuring biopsy samples from mass lesions include fine-needle aspiration, percutaneous core needle biopsy and video-assisted thoracoscopic biopsy. In this review, we will deal only with the role and limitations of percutaneous core biopsies in the interpretation of thymic epithelial neoplasms.
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Affiliation(s)
- David Suster
- Departments of Pathology, Mount Sinai Hospital and Icahn School of Medicine, New York City, New York
| | - Saul Suster
- Department of Pathology, Medical College of Wisconsin, Milwaukee, Wisconsin.
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19
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Robbrecht DG, Atrafi F, van Riet J, Eskens FA, van Diest PJ, Cuppen EP, van Leenders GJ, van de Werken HJ, Lolkema MP. Unique Case of a Rare Mesenchymal Tumor Harboring a Somatic c.119delC VHL Mutation. JCO Precis Oncol 2019; 3:1-8. [DOI: 10.1200/po.18.00244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | - Florence Atrafi
- Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Job van Riet
- Erasmus University Medical Center, Rotterdam, the Netherlands
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20
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Oshiro H, Tome Y, Kiyuna T, Miyake K, Kawaguchi K, Higuchi T, Miyake M, Zang Z, Razmjooei S, Barangi M, Wangsiricharoen S, Nelson SD, Li Y, Bouvet M, Singh SR, Kanaya F, Hoffman RM. Temozolomide targets and arrests a doxorubicin-resistant follicular dendritic-cell sarcoma patient-derived orthotopic xenograft mouse model. Tissue Cell 2019; 58:17-23. [PMID: 31133242 DOI: 10.1016/j.tice.2019.04.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 04/01/2019] [Indexed: 11/24/2022]
Abstract
Follicular dendritic cell sarcoma (FDCS) is a very rare and highly recalcitrant disease. A patient's doxorubicin-resistant FDCS was previously established orthotopically on the right high thigh into the biceps femoris of mice to establish a patient-derived orthotopic xenograft (PDOX) model. The aim of the present manuscript was to identify an effective drug for this recalcitrant tumor. Here, we evaluated the efficacy of temozolomide (TMZ), trabectedin (TRAB) and pazopanib (PAZ) on the FDCS PDOX model. PDOX mouse models were randomized into five groups of eight to nine mice, respectively. Group 1, untreated control with PBS, i.p.; Group 2, treated with doxorubicin (DOX), 2.4 mg/kg, i.p., weekly for 3 weeks; Group 3, treated with PAZ, 50 mg/kg, oral gavage, daily for 3 weeks; Group 4, treated with TMZ, 25 mg/kg, oral gavage, daily for 3 weeks; Group 5, treated with TRAB, 0.15 mg/kg, i.v., weekly for 3 weeks. Body weight and tumor volume were assessed 2 times per week. TMZ arrested the FDCS PDOX model compared to the control group (p < 0.05). PAZ and TRAB did not have significant efficacy compared to the control group (p = 0.99, p = 0.69 respectively). The PDOX tumor was resistant to DOX (p= 0.99). as was the patient. The present study demonstrates that TMZ is effective for a PDOX model of FDCS established from a patient who failed DOX treatment, further demonstrating the power of PDOX to identify effective therapy including for tumors that failed first line therapy.
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Affiliation(s)
- Hiromichi Oshiro
- AntiCancer Inc., San Diego, CA, USA; Department of Surgery, University of California, San Diego, CA, USA; Department of Orthopedic Surgery, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Yasunori Tome
- Department of Orthopedic Surgery, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan.
| | - Tasuku Kiyuna
- AntiCancer Inc., San Diego, CA, USA; Department of Surgery, University of California, San Diego, CA, USA; Department of Orthopedic Surgery, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Kentaro Miyake
- AntiCancer Inc., San Diego, CA, USA; Department of Surgery, University of California, San Diego, CA, USA
| | - Kei Kawaguchi
- AntiCancer Inc., San Diego, CA, USA; Department of Surgery, University of California, San Diego, CA, USA
| | - Takashi Higuchi
- AntiCancer Inc., San Diego, CA, USA; Department of Surgery, University of California, San Diego, CA, USA
| | - Masuyo Miyake
- AntiCancer Inc., San Diego, CA, USA; Department of Surgery, University of California, San Diego, CA, USA
| | - Zhiying Zang
- AntiCancer Inc., San Diego, CA, USA; Department of Surgery, University of California, San Diego, CA, USA
| | - Sahar Razmjooei
- AntiCancer Inc., San Diego, CA, USA; Department of Surgery, University of California, San Diego, CA, USA
| | - Maryam Barangi
- AntiCancer Inc., San Diego, CA, USA; Department of Surgery, University of California, San Diego, CA, USA
| | - Sintawat Wangsiricharoen
- AntiCancer Inc., San Diego, CA, USA; Department of Surgery, University of California, San Diego, CA, USA
| | - Scott D Nelson
- Department of Pathology, University of California, Los Angeles, CA, USA
| | - Yunfeng Li
- Department of Pathology, University of California, Los Angeles, CA, USA
| | - Michael Bouvet
- Department of Surgery, University of California, San Diego, CA, USA
| | - Shree Ram Singh
- Basic Research Laboratory, National Cancer Institute, Frederick, MD, USA.
| | - Fuminori Kanaya
- Department of Orthopedic Surgery, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Robert M Hoffman
- AntiCancer Inc., San Diego, CA, USA; Department of Surgery, University of California, San Diego, CA, USA.
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Recurrent PDGFRB mutations in unicentric Castleman disease. Leukemia 2019; 33:1035-1038. [PMID: 30607019 PMCID: PMC6484698 DOI: 10.1038/s41375-018-0323-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/29/2018] [Accepted: 11/01/2018] [Indexed: 12/26/2022]
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Zhou XA, Louissaint A, Wenzel A, Yang J, Martinez-Escala ME, Moy AP, Morgan EA, Paxton CN, Hong B, Andersen EF, Guitart J, Behdad A, Cerroni L, Weinstock DM, Choi J. Genomic Analyses Identify Recurrent Alterations in Immune Evasion Genes in Diffuse Large B-Cell Lymphoma, Leg Type. J Invest Dermatol 2018; 138:2365-2376. [PMID: 29857068 DOI: 10.1016/j.jid.2018.04.038] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 04/08/2018] [Accepted: 04/09/2018] [Indexed: 02/08/2023]
Abstract
Cutaneous diffuse large B-cell lymphomas (DLBCLs) are aggressive lymphomas with a poor prognosis. To elucidate their genetic bases, we analyzed exome sequencing of 37 cutaneous DLBCLs, including 31 DLBCLs, leg type (DLBCL-LT) and 6 cutaneous DLBCLs-not otherwise specified (DLBCL-NOS). As reported previously, 77% of DLBCL-LT harbor NF-κB-activating MYD88 mutations. In nearly all MYD88-wild-type DLBCL-LT, we found cancer-promoting mutations that either activate the NF-κB pathway through alternative genes (NFKBIE or REL) or activate other canonical cancer pathways (BRAF, MED12, PIK3R1, and STAT3). After NF-κB, the second most commonly mutated pathway putatively enables immune evasion via mutations predicted to downregulate antigen processing (B2M, CIITA, HLA) or T-cell co-stimulation (CD58). DLBCL-LT have little genetic overlap with the genetically heterogeneous DLBCL-NOS. Instead, they resemble primary central nervous system and testicular large B-cell lymphomas (primary central nervous system lymphomas and primary testicular lymphomas). Like primary central nervous system lymphomas/primary testicular lymphomas, 40% of DLBCL-LT (vs. 0% of DLBCLs-not otherwise specified) harbored PDL1/PDL2 translocations, which lead to overexpression of PD-L1 or PD-L2 in 50% of the cases. Collectively, these data broaden our understanding of cutaneous DLBCLs and suggest novel therapeutic approaches (e.g., BRAF or PI3K inhibitors). Additionally, they suggest novel treatment paradigms, wherein DLBCL-LT can be targeted with strategies (e.g., immune checkpoint blockers) currently being developed for genomically similar primary central nervous system lymphomas/primary testicular lymphomas.
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Affiliation(s)
- Xiaolong Alan Zhou
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Abner Louissaint
- Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Alexander Wenzel
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Jingyi Yang
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA; Robert H. Lurie Comprehensive Cancer Center of Northwestern University, Chicago, Illinois, USA
| | | | - Andrea P Moy
- Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Elizabeth A Morgan
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Christian N Paxton
- ARUP Institute for Clinical and Experimental Pathology, Salt Lake City, Utah, USA
| | - Bo Hong
- Department of Pathology, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Erica F Andersen
- Department of Pathology, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Joan Guitart
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Amir Behdad
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Lorenzo Cerroni
- Department of Dermatology, Medical University of Graz, Graz, Austria
| | - David M Weinstock
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA; Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Jaehyuk Choi
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA; Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA; Robert H. Lurie Comprehensive Cancer Center of Northwestern University, Chicago, Illinois, USA.
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