[The relationship between Sjogren's syndrome, systemic sclerosis and lymphoproliferative diseases].

Unlabelled: Despite the large number of studies devoted to the study of systemic sclerosis (SSc), the high risk of developing lymphomas in this disease, the relationship of their development with certain subtypes of SSc and specific SSc-associated autoantibodies is still debated in the literature.

Aim: To study demographic, clinical, laboratory and immunological characteristics of patients with a combination of primary Sjogrens syndrome (pSS) and SSc and diagnosed lymphoproliferative diseases (LPDs); to characterize morphological/immunomorphological variants and course of non-Hodgkins lymphomas (NHL), developing in patients with these rheumatic diseases (RDs).

Materials And Methods: In 19982018 at the Nasonova Research Institute of Rheumatology, 13 patients with clinical and laboratory manifestations of pSS (12) and SSc (13) were diagnosed with various lymphoproliferative diseases (LPDs).

[Idiopathic multicentric Castleman's disease].

Idiopathic multicentric Castlemans disease is a rare lymphoproliferative disorder that has many similar laboratory, radiological, clinical and pathological manifestations with various conditions, including IgG4-related disease. Increased activity of cytokines, especially interleukin-6, leads to systemic inflammatory symptoms with the development of lymphadenopathy and rarely extranodal lesions. Histological changes in the lymph nodesin hyaline vascular and plasma cell variants of Castlemans disease are hardly distinguishable from the pattern of reactive, tumor and IgG4-related lymphadenopathy.

[Clinical and laboratory characteristics of IgG4-realated disease and its diagnostic algorithm].

Aim: to propose diagnostic algorithm of IgG4-related disease (IgG4-RD).

Materials And Methods: One center retrospective research. 52 pts with IgG4-RD were included.

Diagnosis of IgG4 - related ophthalmic disease in a group of patients with various lesions of the eye and orbits.

Aim: To provide demographic, clinical, laboratory, ultrasound, radiological, morphological/ immunomorphological phenotype of IgG4-related ophthalmic diseases, which allowsmaking a differential diagnosis with granulomatous, autoimmune, inflammatory, endocrine and hematologic diseases affecting the eye and orbits.

Materials And Methods: From 2004 to 2016 108 (78.2%) of the 138 patients were diagnosed with non-tumoral lesions of eye and orbits.

[Impact of СD8/FoxP3 T lymphocyte ratio in the peritumoral area of primary cutaneous melanoma on the prognosis of the disease].

Unlabelled: Cutaneous melanoma (CM) is a malignant tumor characterized by typical histological features, one of which is tumor-infiltrating lymphocytes (TIL) that reflect the state of local immunity and determines the course of the disease.

Aim: to study a correlation of the ratio of CD8/Foxp3 T lymphocyte subpopulations infiltrating primary cutaneous melanoma (PCM) with the clinical and morphological factors and prognosis of the disease.

Material And Methods: The CD8+ and FoxP3+ T-lymphocyte subpopulations infiltrating PCM were investigated in 180 cases by immunohistochemical staining with anti-CD8 and anti-FoxP3 antibodies.

[The differential diagnosis of Erdheim-Chester disease and IgG4-related diseases].

The paper describes Russia's first diagnosed case of Erdheim--Chester disease (systemic histiocytosis) in a 65-year-old man who has been long treated for Ormond's disease (idiopathic retroperitoneal fibrosis). It also gives the data available in the literature on the pathogenetic components of these diseases and on the similarity of many clinical, laboratory, and morphological characteristics of these two immunoinflammatory diseases and covers the issues of their differential diagnosis. Invasive procedures with a careful morphological/immunomorphological examination of biopsy specimens obtained from affected tissues are shown to be necessary for accurate diagnosis.

[IgG4-related salivary gland lesions].

Aim: To provide the demographic, clinical, laboratory, radiological, morphological, and immunomorphological characteristics of IgG4-related sialoadenitis (IgG4-S), which allow the differential diagnosis with neuroendocrine, granulomatous, blood cancer lesions of the salivary gland (SG).

Subjects And Methods: In the period 2004 to 2014, IgG4-S was diagnosed in 32 (11%) out of 289 patients with significantly enlarged parotid and submandibular glands (PG and SMG). Only 4 (9%) patients had isolated IgG4-related disease (IgG4-D) whereas involvement of a few organs ran as an IgG4-SD systemic disease in 29 (91%) patients.

[Differential diagnosis of rheumatic diseases and blood cancers involving the nasal cavity and accessory sinuses].

Aim: To provide the clinical, laboratory, radiological, morphological, and immunomorphological signs that permit the differential diagnosis to be made in patients with involvement of the nasal cavity and accessory sinuses (NCAS).

Subjects And Methods: In the period 2009 to 2013, the Laboratory for Intensive Therapy for Rheumatic Diseases, V.A.

[Rituximab therapy for systemic manifestations and MALT lymphomas of the parotid gland in Sjögren's disease: preliminary data].

Aim: To evaluate the efficacy of rituximab (RT) in cryoglobulinemic vasculitis (CGV) and MALT lymphomas of the parotid gland (PG) in patients with Sjögren's disease (SD).

Subjects And Methods: RT therapy was performed in 13 patients with SD and CGV and in 17 with SD and PC MALT lymphoma. Eleven patients with SD received RT monotherapy and 19 with this disease had combined therapy with RT and cyclophosphan (CP).

[Clinical and morphological aspects of MALT-gastric lymphoma].

Unlabelled: Mucosa-associated lymphoid tissue (MALT) conception has been extensively developing for last 20 years.

The Aim: The aim of this work was to elaborate clinico-morphological and immunohistochemical criteria of gastric MALT-lymphomas and to differentiate them from another with similar histology.

Materials And Methods: Between 1983 and 2007, 704 patients with diagnosis of extranodal lymphoma were observed in Russian Cancer Research Center.

[The first experience of using rituximab in Mikulicz disease].

The paper describes a case of Mikulicz's disease (MD) in a young woman (aged 19 years) with symmetrical large salivary gland lesion concurrent with the enlarged lacrimal glands. Immunomorphological and molecular studies of parotid gland biopsy specimens revealed the formation of MALT tissue without signs of B-cell clonality of an infiltrate. The diagnosis of lacrimal sac lymphoma was ruled out.

[The role of parotid gland biopsy in early detection of lymphoma in primary Sjogren's syndrome].

Aim: To investigate the incidence of MALT-lymphoma in Sjogren's disease by means of biopsy of the enlarged parotid glands.

Material And Methods: 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).

[First experience with the application of rituximab for the treatment of patients with Sjogren's syndrome and disease].

Efficiency and tolerability of rituximab therapy were assessed in 13 patients with Sjogren's syndrome and disease (10) (SLE-1, RA-2). Nine patients (SD-8, PA-1) presented with lymphomas and 4 with systemic manifestations of the disease. Complete and partial remission of lymphoma was achieved in 7 (78%) and 2 (22%) patients respectively.

[Endoscopic resection of mucosal and submucosal stomach layers as the diagnostic and medical procedure in oncology].

Owing to introduction in a daily practice of modern medical technologies there was real improvement of duly diagnostics of early forms of a cancer of a gastroenteric path. In this connection interest to endoscopic methods of its treatment has increased. According to the world literature, parameters of a radical resection of a mucous membrane of a stomach in occasion of early cancer vary in a range of 75-98% depending on the macroscopical form of growth and the sizes of a tumors.

[Gastric tumor of complex structure].

The paper describes a case of gastric tumor comprising moderately differentiated adenocarcinoma and atypical carcinoid with metastases of both types of tumor cells in the lymph nodes. Electron microscopic and immunohistochemical studies of primary gastric tumor and lymph nodal metastases confirmed the presence of both differentiation types within one space-occupying lesion: such as goblet (mucin-producing) and neuroendocrine cells. The differentiation varied in different fields of vision with a preponderance of low-grade ultrastructural differentiation cells.

[MALT-lymphomas in Sjogren's disease].

Aim: To develop algorithm of early diagnosis of extranodal lymphoma arising in patients with Sjorgen's disease (SD).

Material And Methods: SD diagnosis was made in 457 patients treated in Rheumatology Institute clinic in 1999-2004, 38 (8.3%) females aged 19-82 had lymphoproliferative diseases.

[Stomach MALT-lymphoma with marked plasmocytic differentiation: a variant of Mott's cell tumor].

Stomach MALT-lymphomas have a specific feature of clinical behaviour and prognosis, this being reason to differentiate it from others gastric lymphoma's variants. 75 cases of gastric MALT-lymphomas having "classical" morphological features with polymorphic tumour infiltration. We described the only case of MALToma in our series characterised by a strong marker tendency of monoclonal plasmocytic differentiation (including plasmoblasts) with 'signet-ring' cells, Dutcher and Russel bodies using morphological, histochemical and immunohistochemical methods.

[MALT gastric lymphoma--principles of morphological diagnosis].

MALT gastric lymphoma presents difficulties for morphological diagnosis as it is represented by neoplastic elements having morphology of mature cells. 75 MALT-lymphomas of the stomach with polymorphous tumour infiltrate are reported. The infiltrate was analyzed by cell composition, cell atypia, the presence of lymphoepithelial lesions (LEL) and lymphoid follicles, blast cells and "blast" LEL.

[Profuse gastric bleeding in a female with Dieulafois syndrome].

Dieulafois syndrome is a rare congenital pathology with profuse gastric bleeding due to the damage to arterial wall in the submucosa layer. The case illustrates difficulties encountered in the treatment of such patients.