Niedrige Preise, Riesen-Auswahl. Kostenlose Lieferung möglic Patterns of care for orbital marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue in Korea throughout 2016: Results from a multicenter cross-sectional cohort study (KROG 16-19) Asia Pac J Clin Oncol. 2019 Dec;15(6):358-363. doi: 10.1111/ajco.13221..
Purpose: To present 2 patients in whom orbital radiation preceded the development of periorbital extranodal marginal zone lymphoma by more than a decade and to investigate the likelihood of this representing irradiation-induced malignancy. Methods: Retrospective chart review and histopathologic study with immunohistochemistry of 2 cases All of the 48 cases were confirmed as marginal zone B-cell lymphoma of MALT (MALT lymphoma). The pathologic diagnoses were primarily based on the well established histologic diagnostic criteria: an infiltration of the marginal zone by B-cells occasionally associated with reactive follicles
Orbital lymphoma is a B-cell non-Hodgkin lymphoma, and in most cases arises from mucosa-associated lymphoid tissue (i.e. orbital adnexal MALT lymphoma (OAML)): 50-78% of cases in Western nations, and up to 90% of cases from Japan and Korea 1 Orbital lymphoma in a 58-year-old man with blurry vision. (A) Magnetic resonance imaging and fluorodeoxyglucose positron emission tomography lead to diagnosis of marginal zone lymphoma (MZL) with conjunctiva and choroid involvement . Pathology showed extranodal marginal zone B-cell lymphoma. The patient was referred to hematology-oncology for additional work-up and management of the lymphoma, which included whole body PET/CT and MRI brain and orbits with and without contrast
Keywords: Marginal zone lymphoma, orbital lymphoma, proptosis. INTRODUCTION. Primary orbital lymphomas are a rare subset of non-Hodgkin's lymphomas. They are mostly indolent, slow-growing B cell lymphomas, usually presenting with progressive proptosis. The role of surgery is mainly for obtaining a biopsy, and the management of such tumours. The most common locations for MALT Lymphomas are the GI tract (stomach>small intestine>colon). Other locations include: lung, thyroid, salivary gland, tonsil, breast, or orbit. MALT lymphomastypically arise from the marginal zone of lymphoid follicle
Other treatment modalities were given to a limited number of orbital MALT lymphoma patients as follows: watch and wait, 6/90 (7%); antibiotics, 3/90 (3%) and chemotherapy, 1/90 (1%). Generally, RT was administered to the entire involved site such as the entire conjunctiva/eyelid or entire orbit (96%), with a median total dose of 25.2 Gy Extranodal marginal zone B-cell lymphoma is the most common lymphoma of the ocular adnexa (conjunctiva, orbit, lacrimal gland, and eyelid). Methods: A systematic search of the relevant literature was performed. Material pertinent to the diagnosis, prognosis, pathogenesis, and treatment of extranodal marginal zone B-cell lymphoma of the ocular. In this issue of Blood, Desai et al report a large retrospective analysis from the University of Miami including 182 patients with primary ocular adnexal mucosa-associated lymphoid tissue (MALT) lymphoma (orbital marginal zone lymphoma [MZL]). 1 Most were at an early stage (82%), and 76% were treated successfully with orbital irradiation. Treatment and follow-up data spanned 31 years
ologic study with immunohistochemistry of 2 cases. Results: The first patient was a 58-year-old woman who developed an orbital mass within the vicinity of the lateral rectus muscle 17 years after external beam proton radiation therapy for an inferotemporal choroidal melanoma. The second patient was a 32-year-old woman who developed a mass in the right lacrimal gland 12 years after external. In 1984, Isaacson and Wright [ 1] described a group of lymphomas that derived from mucosa-associated lymphoid tissue (MALT). Today these lymphomas are well established as a distinct subtype of the marginal zone lymphomas (MZL) in the non-Hodgkin's lymphoma classification OSTI.GOV Journal Article: Orbital marginal zone B-cell lymphoma of Malt: Radiotherapy results and clinical behavio Orbital marginal zone lymphomas: an immunohistochemical, polymerase chain reaction, and fluorescence in situ hybridization study Author links open overlay panel Ginette Schiby MD a Sylvie Polak-Charcon PhD a Corine Mardoukh MS a Kinneret Rosenblatt PhD a Iris Goldberg PhD a Abraham Kneller MD b Mordechai Rosner MD c Juri Kopolovic MD
1. Introduction. Extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma) is a type of low grade non-Hodgkin's lymphoma, which comprises the most common malignancy of the orbit. 1 The pathogenesis of MALT lymphoma has been known to be associated with the environmental factors and its corresponding host immune response. 2 Certain microorganisms are known to. Aim Primary orbital mucosa‐associated lymphoid tissue (MALT) lymphomas are generally sensitive to radiotherapy (RT), but a wait and see strategy has also been used in asymptomatic patients. Recent.. Marginal Zone Lymphoma. Marginal zone lymphoma (MZL) is a group of indolent (slow growing) NHL B-cell lymphomas, which account for approximately eight percent of all NHL cases. The average age at diagnosis is 60 years, and it is slightly more common in women than in men
Lymphomas of the ocular adnexa are a heterogeneous group of malignancies, composing approximately 1% to 2% of non-Hodgkin lymphomas (NHLs) and 8% of extranodal lymphomas. The most common subtype, accounting for up to 80% of cases of primary ocular adnexal lymphoma, is marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT) type Orbital lymphoma is a B-cell non-Hodgkin lymphoma, and in most cases arises from mucosa-associated lymphoid tissue (i.e. orbital adnexal MALT lymphoma (OAML)): 50-78% of cases in Western nations, and up to 90% of cases from Japan and Korea 1. It is unclear, however, if MALT exists normally in the conjunctiva of the eye, or whether it represents. Extranodal marginal zone lymphoma of orbital and ocular adnexa had thus been associated with persistent inflammation [ 23 ]. In Taiwan, the prevalence rate of H. pylori was about 53.9% (95%CI 36.6. Conjunctival and orbital lymphoma frequently present in the conjunctiva, although involvement of the lacrimal gland or other orbital retrobulbar structures is possible. Marginal zone lymphoma is the most common histology, although DLBCL and follicular lymphoma have also been described. Bilateral involvement occurs in a minority of presentations Marginal Zone NHL is a relatively uncommon type of b-cell lymphoma, comprising approximately 2-4% of all cases. There are about 61,000 new cases of NHL diagnosed annually. Therefore we calculate that there are approximately 1,000 to 2,300 new cases of marginal zone NHL diagnosed annually
Lymphomas are the most common orbital malignancies, marginal zone B-cell lymphoma being the most common histotype. One quarter of these lymphomas exhibit conjunctival involvement, which is almost exclusively observed in indolent lymphomas (96% of conjunctival lymphomas) Extranodal marginal zone lymphomas (EMZLs) are marginal zone lymphomas (cancer of white blood cells) that grow in tissues outside of the lymph nodes. These lymphomas occur outside the lymph nodes, for example in the gastrointestinal tract, thyroid, skin, leptomeninges (protective membranes outside the brain), and spinal cord RESULTS: Multivariate logistic regression analysis showed that ill-defined tumor margin (P = .003) had a significant association with orbital lymphoma whereas the flow void sign (P = .005) and radiologic evidence of sinusitis (P = .0002) were associated with benign orbital lymphoproliferative disorders. The mean ADC and contrast-enhancement ratio of orbital lymphomas were significantly. 1. Hematol J. 2002;3(1):14-6. Primary orbital lymphoma. Nutting CM(1), Jenkins CD, Norton AJ, Cree I, Rose GE, Plowman PN. Author information: (1)Department of. BackgroundLow-grade B-cell lymphomas located around the eye present unique challenges in diagnosis and treatment. Extranodal marginal zone B-cell lymphoma is the most common lymphoma of the ocular.
Marginal Zone Lymphoma Overview Lymphoma is the most common blood cancer. The two main forms of lymphoma are Hodgkin lymphoma (HL) and non-Hodgkin lymphoma (NHL). Lymphoma occurs when cells of the immune system called lymphocytes, a type of white blood cell, grow and multiply uncontrollably. Cancerous lymphocytes can travel to man
Orbital lymphoma refers to a lesion occurring in the conjunctiva, lacrimal gland, eyelid and or ocular musculature. 6 Orbital involvement in non-Hodgkin's lymphoma is rare, accounting for only 1% of all NHL and 8% to 10% of extranodal NHL. 6 Although the orbit is an uncommon site of involvement, it is the most common orbital malignancy. Extranodal marginal zone lymphoma. EMZLs are a form of MZL in which malignant marginal zone B-cells initially infiltrate MALT tissues of the stomach (50-70% of all EMZL) or, less frequently, the esophagus, small intestine, large intestine, rectum, conjunctiva of the eye, nasal passages, pharynx, lung bronchi, vulva, vagina, skin, breast, thymus gland, meninges (i.e. membranes) that envelop the. Extranodal marginal zone B-cell lymphoma represents the most common orbital lymphoma subtype. [41, 42] Most patients with ocular adnexal lymphoma have stage IE disease. Immunohistochemical staining with CD markers helps classify lymphomas OSTI.GOV Journal Article: Primary Radiation Therapy in Patients With Localized Orbital Marginal Zone B-Cell Lymphoma of Mucosa-Associated Lymphoid Tissue (MALT Lymphoma Marginal zone lymphomas represent approximately 5%-15% of all non-Hodgkin lymphomas in the Western world. EMZLs comprise approximately two-thirds and can arise at any extranodal site, usually in the context of chronic antigenic stimulation due either to infections or autoimmune disorders
Purpose: To elucidate the clinical behavior and treatment outcome of low-grade primary orbital lymphoma arising from mucosa-associated lymphoid tissue (MALT). Methods and Materials: Forty-eight patients with pathologically confirmed marginal zone B-cell lymphoma of MALT were treated with radiotherapy (RT) To present 2 patients in whom orbital radiation preceded the development of periorbital extranodal marginal zone lymphoma by more than a decade and to investigate the likelihood of this representing irradiation-induced malignancy.Retrospective chart review and histopathologic study with immunohistochemistry of 2 cases.The first patient was a 58-year-old woman who developed an orbital mass.
Extranodal Marginal Zone Lymphoma (MALT lymphoma) is the most common histology of primary OALs (50-80% of cases), followed by Follicular Lymphoma (10-20%), Diffuse Large B-cell Lymphoma (8%), and other less common low grade B-cell NHL, with rare incidence of aggressive, T-cell, and Hodgkin lymphomas Histopathology confirmed the diagnosis of orbital marginal zone B-cell lymphoma, which is an indolent type of lymphoma that can be associated with systemic lymphoma, but the intracranial association has not been previously described. ©2010The American Society of Opthalmic Plastic and Reconstructive Surgery, Inc Like other non-Hodgkin lymphomas, nodal marginal zone lymphoma is more common at advanced ages. There are no clear factors that predispose to the disease. SMZL may be more common in individuals. There are 3 main types of marginal zone lymphomas: Extranodal marginal zone B-cell lymphoma, also known as mucosa-associated lymphoid tissue (MALT) lymphoma: This is the most common type of marginal zone lymphoma. It starts in places other than the lymph nodes (extranodal). There are gastric and non-gastric MALT lymphomas
RESULTS: We found that the 5-year disease-free survival rate was 90.8% in patients with orbital MALT lymphoma (mean value 56.7 months, range 52-60 months). The use of IgH gene rearrangement detection methods found that the non-recurrence rate of primary orbital MALT lymphoma cases was 79.3% Request PDF | Marginal Zone B-Cell Orbital Lymphoma With Intracranial Involvement | A 40-year-old woman presented to the eye clinic with painless swelling of her right lower eyelid of 2 years. Suh CO, Shim SJ, Lee SW, et al. Orbital marginal zone B-cell lymphoma of MALT: radiotherapy results and clinical behavior. Int J Radiat Oncol Biol Phys 2006; 65:228. Decaudin D, de Cremoux P, Vincent-Salomon A, et al. Ocular adnexal lymphoma: a review of clinicopathologic features and treatment options
The vast majority of orbital lymphomas are of B-cell origin (97%), of which extranodal marginal zone B-cell lymphoma (EMZL) (59%) is the most common subtype, followed by diffuse large B-cell lymphoma (23%), follicular lymphoma (9%), and mantle cell lymphoma (5%). Orbital lymphoma is primarily a disease of the elderly. Gender distribution varies. Architectural effacement by atypical centrocyte-like cells (small cleaved follicular cells with abundant cytoplasm), that infiltrate around reactive B cell follicles in a marginal zone distribution with spread into the interfollicular area. May invade epithelial structures to form lymphoepithelial lesions; cells are at various stages of B cell.
Son SH, Choi BO, Kim GW, et al. Primary radiation therapy in patients with localized orbital marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT Lymphoma). Int J Radiat Oncol Biol Phys 2010; 77:86 The most common primary malignant tumor of the orbit is lymphoma. Marginal zone B-cell lymphoma of mucosa-asso ciated-lymphoid-tissue (MALT) account for 59% of all orbital lymphomas. Orbital lymphomas may rarely involve extraocular muscles, but has never been reported as presenting as a vascular mass lesion involving the same
Intraocular: usually diffuse large B-cell lymphomaOrbital: extranodal marginal zone B-cell lymphoma or MALT lymphoma Which structures are involved in intraocular vs. orbital lymphomas? Intraocular lymphomas involve the neural structures.Orbital lymphomas can involve the conjunctiva, ocular adnexa, lacrima Among 32 cases of lymphomas, 28 cases (87.5%) were extranodal marginal zone B-cell lymphomas of mucosa associated lymphoid tissue (MALT lymphoma), 2 cases were follicular lymphoma (FL) and 2 cases.
Curative radiotherapy for primary orbital lymphoma. Int J Radiat Oncol Biol Phys. 2002 Nov 1;54(3):818-23. Review. PMID: 12377334 : Radiotherapy for extranodal, marginal zone, B-cell lymphoma of mucosa-associated lymphoid tissue originating in the ocular adnexa: a multi-institutional, retrospective review of 50 patients Lymphomas in the ocular adnexa predominantly result from B-cell proliferation and include a variety of histologic types. Although diffuse large cell lymphomas occasionally are encountered, the most common type of ocular-adnexal lymphoma is an extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma). 1, 2 The concept of MALT lymphoma was described first in. Primary orbital lymphoma is a rare disease that accounts for 10% of all orbital tumors. Radiotherapy on the orbital cavity is the treatment of choice for this unusual presentation of localized non-Hodgkin's lymphoma (NHL). The aim of this study is to retrospectively evaluate the effectiveness and the toxicity of radiation treatment in patients with primary orbital lymphoma A boost to 40 Gy or above is reasonable to gross disease, with careful attention to retina and lacrimal gland dose. For a patient with diffuse extraorbital metastases, a more abbreviated regimen may be reasonable (~ 20-24 Gy in 10-12 fractions), similar to those described for orbital marginal zone lymphomas Introduction. Ocular adnexal lymphomas (OALs) are localised lymphomas that are confined to the orbit, lacrimal glands, conjunctiva, and lids. 1 Approximately 70-90% of OALs are primary. 1 They are 1% of non-Hodgkin lymphomas. 2 The majority of OALs are primary extranodal B-cell lymphomas of the marginal zone (ENMZ) 3 mucosa-associated lymphoid tissue (MALT) lymphomas. 1,4 OALs are. Subtypes of B-cell nonHodgkin's malignant lymphoma— 1. Extranodal B-cell marginal zone lymphoma, 2. Follicle center cell lymphoma, 3. Small lymphocytic lymphoma, 4. Lymphoplasmacytoid lymphoma, 5. Large cell lymphoma, 6. Mantle cell lymphoma, 7. Burkitt's lymphoma 23. 1