Vadim Gorodetskiy - Academia.edu (original) (raw)
Papers by Vadim Gorodetskiy
Clinical rheumatology, Apr 23, 2024
Elsevier eBooks, Dec 31, 2022
Modern Oncology, 2000
В настоящей публикации впервые на достаточно большом материале (9 наблюдений) представлены клиник... more В настоящей публикации впервые на достаточно большом материале (9 наблюдений) представлены клинико-гематологические, морфологические и иммунофенотипические характеристики больных с Ig-секретирующей формой SMZL.
Naučno-praktičeskaâ revmatologiâ, Feb 15, 2010
Работа посвящена численному моделированию течения трехмерного тонкого, турбулентного слоя жидкост... more Работа посвящена численному моделированию течения трехмерного тонкого, турбулентного слоя жидкости в щелевых уплотнениях мощных питательных насосов. Проведено сравнение различных моделей турбулентности применительно к расчету щелевого уплотнения модельного ротора. Проведен расчет полей давлений и скоростей щелевых уплотнений питательных насосов.
Terapevticheskii Arkhiv, 2016
В 1991 г. C. Gonzalez и соавт. [1] описали новый тип Т-клеточной лимфомы с клинико-патологическим... more В 1991 г. C. Gonzalez и соавт. [1] описали новый тип Т-клеточной лимфомы с клинико-патологическими чертами, напоминающими панникулит. По мере накопления клинических, морфологических и иммуногистохимических данных стало понятно, что подкожная панникулитоподобная Т-клеточная лимфома (ППТКЛ) является неоднородной [2]. Пациенты с γδТ-клеточным фенотипом ППТКЛ имели значительно худший прогноз, у них чаще наблюдался гемофагоцитарный синдром, чем у больных с αβТ-клеточным фенотипом ППТКЛ. Кроме того, выявлены клинические, морфологические и иммунофенотипические особенности, характерные для ППТКЛ с αβ-и γδТ-клеточным фенотипом (табл. 1). Это позволило выделить ППТКЛ с γδТ-клеточным фенотипом как самостоятельную нозологическую единицу «первичная кожная γδТ-клеточная лимфома», а термин ППТКЛ авторы
Annals of the Rheumatic Diseases
BackgroundSchnitzler syndrome is a rare syndrome associated with recurrent whealing and monoclona... more BackgroundSchnitzler syndrome is a rare syndrome associated with recurrent whealing and monoclonal gammopathy. Since its first description in 1972 by the French dermatologist Prof. Liliane Schnitzler, around 500 cases have been described in Europe. The diagnostic delay in Schnitzler syndrome of 5 years was previously reported [Lipsker et al, 2001]. Despite a growing clinical experience [de Koning et al, 2014], Schnitzler syndrome presents a diagnostic challenge in clinical practice. The variation in the diagnostic delay in Europe is a subject of an ongoing systematic review by our multidisciplinary team.ObjectivesIn this work, we would like to analyze a diagnostic delay in the patients with Schnitzler syndrome followed up at tertiary clinical and research setting.MethodsWe present the data from the patients with Schnitzler syndrome that have been under our care by a multidisciplinary team over a period from 2015 to 2021. All patients were analyzed for the age of disease onset and a ...
Poster Presentations, 2017
two drugs, or standard therapy. The term "rare" was defined by the European Union as a condition ... more two drugs, or standard therapy. The term "rare" was defined by the European Union as a condition that occurs in no more than 1 in 2,000 individuals. Two review authors independently assessed trial quality and extracted the data. We screened the search results and included studies if they met the selection criteria. If we identified two or more trials that investigated the same rare disease and used the same assessment tools we performed a meta-analysis. Results: 135 studies were screened, of which 34 met the inclusion criteria. In total, we analysed data on 11 different orphan diseases, encompassing 2,324 participants. There was a high degree of statistical and clinical heterogeneity in these trials. Several sources of potential bias were identified in the included studies, for example, a lack of description of the blinding methods and allocation concealment, as well as the small size of the study populations. We included studies such as rituximab against cyclophosphamide in ANCA-associated vasculitis. These studies demonstrated a non-inferiority of rituximab. The meta-analysis resulted a combined odds ratio (OR) of 1.42 in favour of rituximab (95% CI). Further metaanalyses were possible for another 22 studies involving, among others, Behçet's disease, systemic sclerosis, cryopyrin-associated periodic syndromes, and giant cell arteritis. Compounds studied were immunosuppressants like corticosteroids, methotrexate and azathioprine, or biologicals such as rilonacept, infliximab, and canakinumab. Conclusions: A high degree of evidence is hampered by the limited number of study participants in each trial. On the other hand, diseases such as systemic sclerosis, ANCA-associated vasculitides, or Behçet's disease had more high quality trials available. The amount of data for most other rare disease remains unsatisfactory. References: [1] Leyens J, Stieber C, Bender TTA, Mücke M, Seidel MF. (2016) Classification of rare diseases in rheumatology demonstrates a combined prevalence double to the prevalence of ankylosing spondylitis. Ann. Rheum. Dis. 75(Suppl2): 618.
Pediatric Rheumatology, 2015
Terapevticheskii arkhiv, 2015
Лимфомы составляют 4,3% от всех первичных опухолей печени [1]. Лимфома печени может рассматривать... more Лимфомы составляют 4,3% от всех первичных опухолей печени [1]. Лимфома печени может рассматриваться как «первичная», когда она возникает и локализована в печени. В 16-22% случаев неходжкинские лимфомы (НХЛ) в процессе диссеминации могут поражать печень [2]. В связи с этим для постановки диагноза первичной лимфомы печени (ПЛП) требуется комплексное обследование пациента для исключения поражения других экстранодальных органов, лимфатических узлов, селезенки, костного мозга и периферической крови. На основании гистологической картины и иммуногистохимических данных выделяют различные варианты ПЛП. Среди НХЛ, возникающих в печени, наиболее часто встречается диффузная В-крупноклеточ ная лимфома (ДВККЛ) [3-8]. В одном из исследований ДВККЛ составляла 71% от всех ПЛП [5]. Значительно реже встречаются другие варианты ПЛП: MALT-лимфома, лимфома Беркитта, фолликулярная лимфома, периферическая Т-клеточная неспецифицированная лимфома и анапластическая крупноклеточная лимфома [9-13]. Нам не встретилось в литературе ни одного описания лимфомы Ходжкина, которая первично поражала бы печень. Приводим описание диффузной В-крупноклеточной лимфомы печени у пациентки с болезнью Шегрена (БШ). Пациентка N., 1959 года рождения, с 1984 г. наблюдалась в НИИ ревматологии с диагнозом БШ. В течение многих лет при
Clinical and Experimental Rheumatology
Modern Rheumatology Journal
This article describes a case of a transformed diffuse large B-cell lymphoma of the stomach in a ... more This article describes a case of a transformed diffuse large B-cell lymphoma of the stomach in a patient with Sjögren's disease (SjD) and systemic sclerosis (SSc), as well as a brief review of the literature on lymphoproliferative diseases in SjD and SSc.
Naučno-praktičeskaâ revmatologiâ, Feb 15, 2012
International Journal of Molecular Sciences
The relationship between Sjögren syndrome (SS) and T-cell large granular lymphocytic (T-LGL) leuk... more The relationship between Sjögren syndrome (SS) and T-cell large granular lymphocytic (T-LGL) leukemia remains unclear. In this paper, we report for the first time a large case series of 21 patients with primary and secondary SS associated with T-LGL leukemia. Our results suggest the importance of considering T-LGL leukemia in the diagnostic evaluation of SS patients, particularly when neutropenia occurs. We also postulate that elevated antinuclear antibody titers in patients with T-LGL leukemia indicate the need for the clinical assessment of SS. To assess whether SS affects the frequency of the signal transducer and activator of transcription 3 (STAT3) gene mutations in T-LGL leukemia, we examined STAT3 mutations by next-generation sequencing in two cohorts of patients: with SS-associated T-LGL leukemia and T-LGL leukemia in the setting of rheumatic diseases but without SS. While our results suggest that SS, per se, is not associated with an increased frequency of STAT3 mutations i...
Frontiers in Medicine, Aug 31, 2022
Annals of the Rheumatic Diseases, 2013
Background Non-Hodgkin lymphomas (NHL) are 3 to 45 times more common in rheumatic diseases (RD) t... more Background Non-Hodgkin lymphomas (NHL) are 3 to 45 times more common in rheumatic diseases (RD) than in the general population. The spectrum of NHL varies in different studies. Objectives To describe the most common types of NHL diagnosed in rheumatic patients from 2008 to 2010 in the Institute of Rheumatology of RAMS, Moscow. Methods 185 patients (female-148, male-27) aged 19 to 80 years old (median-52 years old) with various RD and predictors of NHL development (massive enlargement of lacrimal and salivary glands, cytopenia, lymphadenopathy, splenomegaly, monoclonalsecretionIg) were conducted an oncohematological survey, including incisional biopsies with subsequent immunomorphological study, trephine biopsies and myelograms, T-and B-cell clonality determination by PCR in peripheral blood and tissue samples. Results One hundred and ten (65.5%) patients (primary Sjögren’s syndrome (pSS) - 58, rheumatoid arthritis (RA)–25, systemic scleroderma (SSD)-4 and chronic hepatobiliary diseases (CHD)-6) were diagnosed with NHL. The diagnosis of RD was withdrawn with subsequent identification of primary NHL in 8 cases, myeloproliferative diseases in 5 cases and primary AL-amyloidosis in 4 patients. B-cell NHL were found in 97 (88%) and T-cell in 13 (12%) patients respectively. Immunoglobulin-secreting variant of lymphoma was observed in 30 (29.7%) patients with NHL. In RA B-cell (48%) and T-cell (52%) lymphomas were represented in equal proportions. Marginal zone lymphoma (MZL) was most frequently detected in pSS, SSD and CHD, whereas T-cell leukemia of large granular lymphocytes was more often diagnosed in RA (n=9). Plasma cell dyscrasia (PD) ranked second more frequent in pSS (n=5) and RA (n=5). T-cell splenic lymphoma (RA - 4), chronic lymphocytic leukemia (pSS - 1, RA - 2) and diffuse large B-cell lymphoma (RA-1, pSS-2) were diagnosed less frequently. Seventeen (76.5%) of the 22 examined patients with RA, SSD and CHD had associated Sjögren’s syndrome. Three patients simultaneously developed two types of NHL. Conclusions A prospective study has shown that low-grade MZL, PD, T-cell leukemia of large granular lymphocytes and γδ-T-cell splenic lymphoma are the most common in RD. Primary NHL, PD, AL-amyloidosis and myeloproliferative disorders often have clinical features similar to rheumatic diseases. Disclosure of Interest None Declared
Terapevticheskiĭ arkhiv, 2009
To investigate the incidence of MALT-lymphoma in Sjogren's disease by means of biopsy of the ... more To investigate the incidence of MALT-lymphoma in Sjogren's disease by means of biopsy of the enlarged parotid glands. The incisional parotid biopsy was performed in 57 primary Sjogren's syndrome (pSS) patients with existing parotid enlargement. The median age was 54 years (range 19-75 years). The median pSS duration was 7 years (range 1-30 years). The palpable parotid enlargement was defined as grade 1 and massive (visional) enlargement of the parotid glands was defined as grade 2. Histologic and immunohistochemical examinations for diagnosis of lymphoma were made. High resolution electrophoresis and immunofixation were performed for detection of monoclonal immunoglobulins in the serum and their free light chains in the urine. Biopsy of the enlarged parotid glands identified MALT-lymphoma in 37 of 57 (64.9%) pSS patients. Of 37 pSS patients with parotid enlargement of grade 2, diagnosis of MALT-lymphoma was made in 89.2%. Of 20 pSS patients who had parotid enlargement of gra...
Annals of the Rheumatic Diseases, 2013
Objectives Approximately 15% of patients with T-cell large granular lymphocytic leukemia (T-LGLL)... more Objectives Approximately 15% of patients with T-cell large granular lymphocytic leukemia (T-LGLL) have rheumatoid arthritis (RA). RA-associated T-LGLL with low large granular lymphocyte counts (aleukemic presentation) and Felty's syndrome (FS) have indistinguishable clinical presentations. These disorders are distinguished by T-cell clonality which is observed in T-LGLL but not in FS. Activating somatic mutations in the signal transducer and activator of transcription 3 (STAT3) and 5 (STAT5b) genes are involved in T-LGLL pathogenesis; however, the prevalence of these mutations in FS is unknown.Methods Based on the rearrangements of T-cell receptor (TCR) gamma and beta genes according to the BIOMED-2 protocol, we examined T-cell clonality in 81 patients with RA and unexplained neutropenia. We stratified these patients by the presence or absence of T-cell clonality, respectively, into 2 groups: RA-associated T-LGLL (56 patients) and FS (25 patients). Allele-specific TaqMan Real-Ti...
Clinical rheumatology, Apr 23, 2024
Elsevier eBooks, Dec 31, 2022
Modern Oncology, 2000
В настоящей публикации впервые на достаточно большом материале (9 наблюдений) представлены клиник... more В настоящей публикации впервые на достаточно большом материале (9 наблюдений) представлены клинико-гематологические, морфологические и иммунофенотипические характеристики больных с Ig-секретирующей формой SMZL.
Naučno-praktičeskaâ revmatologiâ, Feb 15, 2010
Работа посвящена численному моделированию течения трехмерного тонкого, турбулентного слоя жидкост... more Работа посвящена численному моделированию течения трехмерного тонкого, турбулентного слоя жидкости в щелевых уплотнениях мощных питательных насосов. Проведено сравнение различных моделей турбулентности применительно к расчету щелевого уплотнения модельного ротора. Проведен расчет полей давлений и скоростей щелевых уплотнений питательных насосов.
Terapevticheskii Arkhiv, 2016
В 1991 г. C. Gonzalez и соавт. [1] описали новый тип Т-клеточной лимфомы с клинико-патологическим... more В 1991 г. C. Gonzalez и соавт. [1] описали новый тип Т-клеточной лимфомы с клинико-патологическими чертами, напоминающими панникулит. По мере накопления клинических, морфологических и иммуногистохимических данных стало понятно, что подкожная панникулитоподобная Т-клеточная лимфома (ППТКЛ) является неоднородной [2]. Пациенты с γδТ-клеточным фенотипом ППТКЛ имели значительно худший прогноз, у них чаще наблюдался гемофагоцитарный синдром, чем у больных с αβТ-клеточным фенотипом ППТКЛ. Кроме того, выявлены клинические, морфологические и иммунофенотипические особенности, характерные для ППТКЛ с αβ-и γδТ-клеточным фенотипом (табл. 1). Это позволило выделить ППТКЛ с γδТ-клеточным фенотипом как самостоятельную нозологическую единицу «первичная кожная γδТ-клеточная лимфома», а термин ППТКЛ авторы
Annals of the Rheumatic Diseases
BackgroundSchnitzler syndrome is a rare syndrome associated with recurrent whealing and monoclona... more BackgroundSchnitzler syndrome is a rare syndrome associated with recurrent whealing and monoclonal gammopathy. Since its first description in 1972 by the French dermatologist Prof. Liliane Schnitzler, around 500 cases have been described in Europe. The diagnostic delay in Schnitzler syndrome of 5 years was previously reported [Lipsker et al, 2001]. Despite a growing clinical experience [de Koning et al, 2014], Schnitzler syndrome presents a diagnostic challenge in clinical practice. The variation in the diagnostic delay in Europe is a subject of an ongoing systematic review by our multidisciplinary team.ObjectivesIn this work, we would like to analyze a diagnostic delay in the patients with Schnitzler syndrome followed up at tertiary clinical and research setting.MethodsWe present the data from the patients with Schnitzler syndrome that have been under our care by a multidisciplinary team over a period from 2015 to 2021. All patients were analyzed for the age of disease onset and a ...
Poster Presentations, 2017
two drugs, or standard therapy. The term "rare" was defined by the European Union as a condition ... more two drugs, or standard therapy. The term "rare" was defined by the European Union as a condition that occurs in no more than 1 in 2,000 individuals. Two review authors independently assessed trial quality and extracted the data. We screened the search results and included studies if they met the selection criteria. If we identified two or more trials that investigated the same rare disease and used the same assessment tools we performed a meta-analysis. Results: 135 studies were screened, of which 34 met the inclusion criteria. In total, we analysed data on 11 different orphan diseases, encompassing 2,324 participants. There was a high degree of statistical and clinical heterogeneity in these trials. Several sources of potential bias were identified in the included studies, for example, a lack of description of the blinding methods and allocation concealment, as well as the small size of the study populations. We included studies such as rituximab against cyclophosphamide in ANCA-associated vasculitis. These studies demonstrated a non-inferiority of rituximab. The meta-analysis resulted a combined odds ratio (OR) of 1.42 in favour of rituximab (95% CI). Further metaanalyses were possible for another 22 studies involving, among others, Behçet's disease, systemic sclerosis, cryopyrin-associated periodic syndromes, and giant cell arteritis. Compounds studied were immunosuppressants like corticosteroids, methotrexate and azathioprine, or biologicals such as rilonacept, infliximab, and canakinumab. Conclusions: A high degree of evidence is hampered by the limited number of study participants in each trial. On the other hand, diseases such as systemic sclerosis, ANCA-associated vasculitides, or Behçet's disease had more high quality trials available. The amount of data for most other rare disease remains unsatisfactory. References: [1] Leyens J, Stieber C, Bender TTA, Mücke M, Seidel MF. (2016) Classification of rare diseases in rheumatology demonstrates a combined prevalence double to the prevalence of ankylosing spondylitis. Ann. Rheum. Dis. 75(Suppl2): 618.
Pediatric Rheumatology, 2015
Terapevticheskii arkhiv, 2015
Лимфомы составляют 4,3% от всех первичных опухолей печени [1]. Лимфома печени может рассматривать... more Лимфомы составляют 4,3% от всех первичных опухолей печени [1]. Лимфома печени может рассматриваться как «первичная», когда она возникает и локализована в печени. В 16-22% случаев неходжкинские лимфомы (НХЛ) в процессе диссеминации могут поражать печень [2]. В связи с этим для постановки диагноза первичной лимфомы печени (ПЛП) требуется комплексное обследование пациента для исключения поражения других экстранодальных органов, лимфатических узлов, селезенки, костного мозга и периферической крови. На основании гистологической картины и иммуногистохимических данных выделяют различные варианты ПЛП. Среди НХЛ, возникающих в печени, наиболее часто встречается диффузная В-крупноклеточ ная лимфома (ДВККЛ) [3-8]. В одном из исследований ДВККЛ составляла 71% от всех ПЛП [5]. Значительно реже встречаются другие варианты ПЛП: MALT-лимфома, лимфома Беркитта, фолликулярная лимфома, периферическая Т-клеточная неспецифицированная лимфома и анапластическая крупноклеточная лимфома [9-13]. Нам не встретилось в литературе ни одного описания лимфомы Ходжкина, которая первично поражала бы печень. Приводим описание диффузной В-крупноклеточной лимфомы печени у пациентки с болезнью Шегрена (БШ). Пациентка N., 1959 года рождения, с 1984 г. наблюдалась в НИИ ревматологии с диагнозом БШ. В течение многих лет при
Clinical and Experimental Rheumatology
Modern Rheumatology Journal
This article describes a case of a transformed diffuse large B-cell lymphoma of the stomach in a ... more This article describes a case of a transformed diffuse large B-cell lymphoma of the stomach in a patient with Sjögren's disease (SjD) and systemic sclerosis (SSc), as well as a brief review of the literature on lymphoproliferative diseases in SjD and SSc.
Naučno-praktičeskaâ revmatologiâ, Feb 15, 2012
International Journal of Molecular Sciences
The relationship between Sjögren syndrome (SS) and T-cell large granular lymphocytic (T-LGL) leuk... more The relationship between Sjögren syndrome (SS) and T-cell large granular lymphocytic (T-LGL) leukemia remains unclear. In this paper, we report for the first time a large case series of 21 patients with primary and secondary SS associated with T-LGL leukemia. Our results suggest the importance of considering T-LGL leukemia in the diagnostic evaluation of SS patients, particularly when neutropenia occurs. We also postulate that elevated antinuclear antibody titers in patients with T-LGL leukemia indicate the need for the clinical assessment of SS. To assess whether SS affects the frequency of the signal transducer and activator of transcription 3 (STAT3) gene mutations in T-LGL leukemia, we examined STAT3 mutations by next-generation sequencing in two cohorts of patients: with SS-associated T-LGL leukemia and T-LGL leukemia in the setting of rheumatic diseases but without SS. While our results suggest that SS, per se, is not associated with an increased frequency of STAT3 mutations i...
Frontiers in Medicine, Aug 31, 2022
Annals of the Rheumatic Diseases, 2013
Background Non-Hodgkin lymphomas (NHL) are 3 to 45 times more common in rheumatic diseases (RD) t... more Background Non-Hodgkin lymphomas (NHL) are 3 to 45 times more common in rheumatic diseases (RD) than in the general population. The spectrum of NHL varies in different studies. Objectives To describe the most common types of NHL diagnosed in rheumatic patients from 2008 to 2010 in the Institute of Rheumatology of RAMS, Moscow. Methods 185 patients (female-148, male-27) aged 19 to 80 years old (median-52 years old) with various RD and predictors of NHL development (massive enlargement of lacrimal and salivary glands, cytopenia, lymphadenopathy, splenomegaly, monoclonalsecretionIg) were conducted an oncohematological survey, including incisional biopsies with subsequent immunomorphological study, trephine biopsies and myelograms, T-and B-cell clonality determination by PCR in peripheral blood and tissue samples. Results One hundred and ten (65.5%) patients (primary Sjögren’s syndrome (pSS) - 58, rheumatoid arthritis (RA)–25, systemic scleroderma (SSD)-4 and chronic hepatobiliary diseases (CHD)-6) were diagnosed with NHL. The diagnosis of RD was withdrawn with subsequent identification of primary NHL in 8 cases, myeloproliferative diseases in 5 cases and primary AL-amyloidosis in 4 patients. B-cell NHL were found in 97 (88%) and T-cell in 13 (12%) patients respectively. Immunoglobulin-secreting variant of lymphoma was observed in 30 (29.7%) patients with NHL. In RA B-cell (48%) and T-cell (52%) lymphomas were represented in equal proportions. Marginal zone lymphoma (MZL) was most frequently detected in pSS, SSD and CHD, whereas T-cell leukemia of large granular lymphocytes was more often diagnosed in RA (n=9). Plasma cell dyscrasia (PD) ranked second more frequent in pSS (n=5) and RA (n=5). T-cell splenic lymphoma (RA - 4), chronic lymphocytic leukemia (pSS - 1, RA - 2) and diffuse large B-cell lymphoma (RA-1, pSS-2) were diagnosed less frequently. Seventeen (76.5%) of the 22 examined patients with RA, SSD and CHD had associated Sjögren’s syndrome. Three patients simultaneously developed two types of NHL. Conclusions A prospective study has shown that low-grade MZL, PD, T-cell leukemia of large granular lymphocytes and γδ-T-cell splenic lymphoma are the most common in RD. Primary NHL, PD, AL-amyloidosis and myeloproliferative disorders often have clinical features similar to rheumatic diseases. Disclosure of Interest None Declared
Terapevticheskiĭ arkhiv, 2009
To investigate the incidence of MALT-lymphoma in Sjogren's disease by means of biopsy of the ... more To investigate the incidence of MALT-lymphoma in Sjogren's disease by means of biopsy of the enlarged parotid glands. The incisional parotid biopsy was performed in 57 primary Sjogren's syndrome (pSS) patients with existing parotid enlargement. The median age was 54 years (range 19-75 years). The median pSS duration was 7 years (range 1-30 years). The palpable parotid enlargement was defined as grade 1 and massive (visional) enlargement of the parotid glands was defined as grade 2. Histologic and immunohistochemical examinations for diagnosis of lymphoma were made. High resolution electrophoresis and immunofixation were performed for detection of monoclonal immunoglobulins in the serum and their free light chains in the urine. Biopsy of the enlarged parotid glands identified MALT-lymphoma in 37 of 57 (64.9%) pSS patients. Of 37 pSS patients with parotid enlargement of grade 2, diagnosis of MALT-lymphoma was made in 89.2%. Of 20 pSS patients who had parotid enlargement of gra...
Annals of the Rheumatic Diseases, 2013
Objectives Approximately 15% of patients with T-cell large granular lymphocytic leukemia (T-LGLL)... more Objectives Approximately 15% of patients with T-cell large granular lymphocytic leukemia (T-LGLL) have rheumatoid arthritis (RA). RA-associated T-LGLL with low large granular lymphocyte counts (aleukemic presentation) and Felty's syndrome (FS) have indistinguishable clinical presentations. These disorders are distinguished by T-cell clonality which is observed in T-LGLL but not in FS. Activating somatic mutations in the signal transducer and activator of transcription 3 (STAT3) and 5 (STAT5b) genes are involved in T-LGLL pathogenesis; however, the prevalence of these mutations in FS is unknown.Methods Based on the rearrangements of T-cell receptor (TCR) gamma and beta genes according to the BIOMED-2 protocol, we examined T-cell clonality in 81 patients with RA and unexplained neutropenia. We stratified these patients by the presence or absence of T-cell clonality, respectively, into 2 groups: RA-associated T-LGLL (56 patients) and FS (25 patients). Allele-specific TaqMan Real-Ti...