Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 504
Filter
1.
Chinese Journal of Pathology ; (12): 301-306, 2022.
Article in Chinese | WPRIM | ID: wpr-935530

ABSTRACT

Objective: To investigate the clinicopathological features as well as BRAF V600E and MYD88 L265P mutation status of nodal marginal zone B cell lymphoma (NMZL). Methods: Thirty-two cases of NMZL were diagnosed from September 2009 to February 2021 at the Henan Provincial People's Hospital and Peking University School of Basic Medical Sciences. The clinicopathologic characteristics were obtained and analyzed. BRAF V600E and MYD88 L265P mutation status were identified using PCR and Sanger sequencing, respectively. Results: There were 20 males and 12 females patients with a median age of 69 years (ranging 36-82 years). The most prevalent clinical manifestation was multiple lymph nodes enlargement in head and neck (22/32, 68.8%), followed by inguinal (12/32, 37.5%), axillary (11/32, 34.4%), mediastinum (5/32, 15.6%) and retroperitoneal lymph nodes (4/32, 12.5%). Most of the patients were in Ann Arbor stage Ⅰ/Ⅱ (21 cases). The morphologic features included diffuse (24/32, 75.0%), nodular (5/32, 15.6%), interfollicular (2/32,6.3%) and perifollicular (1/32,3.1%) types. The tumor cells showed monocyte-like, centrocyte-like, small lymphocyte-like and plasma cell-like differentiation. Immunophenotyping revealed diffuse expression of CD20 in all tumor cells, whereas CD43 (11/32, 34.4%), bcl-2 (20/32, 62.5%), MNDA (13/32, 40.6%) and CD5 (2/32, 6.3%) were partially expressed. Ki-67 proliferation index varied from 10% to 40%. BRAF V600E mutation was found in two cases (2/32, 6.3%), but MYD88 L265P mutation was not detected. Eighteen patients survived and three died at the end of follow-up period which ranged 6 to 110 months. Conclusions: The morphologic features of NMZL varies across individuals, it should be differentiated from various B-cell lymphomas; however immunological biomarkers with high specificity for NMZL are still lacking. No MYD88 L265P mutation is found in NMZL. Some cases may harbor BRAF V600E mutation and yet the prevalence remains indeterminate; further researches are warranted.


Subject(s)
Adult , Aged , Aged, 80 and over , Female , Humans , Lymphoma, B-Cell, Marginal Zone/pathology , Male , Middle Aged , Mutation , Myeloid Differentiation Factor 88/genetics , Polymerase Chain Reaction , Proto-Oncogene Proteins B-raf/genetics
2.
Chinese Journal of Hematology ; (12): 209-214, 2022.
Article in Chinese | WPRIM | ID: wpr-929559

ABSTRACT

Objective: This study aimed to see how different initial treatment regimens affected the long-term prognosis of patients with extranodal marginal zone mucosa-associated lymphoid tissue lymphoma confining to the ocular adnexal (OAML) . Methods: Between April 2008 and April 2019, 109 patients with initial mucosa-associated lymphoid tissue confining to ocular adnexal were evaluated and followed-up, and the prognosis of various initial treatment regimens were examined. Results: A total of 36 patients underwent complete surgical resection of the lesions, and 73 patients had residual lesions after surgery, of which 37 patients chose watchful waiting, and 36 patients chose treatment. The treatment regimen included local radiotherapy and systemic treatment (chemotherapy, immunochemotherapy, the combination of radiotherapy and chemotherapy, etc.) , and no serious toxic and side effects were observed in patients receiving systemic treatment. The median follow-up time was 61 (10-142) months. The 5-year and 10-year progression-free survival (PFS) of monocular involvement patients were 78.2% and 76.0% . The 5-year and 10-year PFS rates of patients with binocular involvement were 64.4% and 23.5%. There was significant diference in PFS between patients with monocular and binocular involvement (P=0.010) . Patients who received additional treatment had higher PFS than those patients in the watchful waiting group (P=0.046) . The 5-year PFS was 71.4% and 90.1% among patients in the watchful waiting group and those who received additional treatment, whereas the 10-year PFS was 63.5% and 75.1% , respectively. Patients with OAML were still a risk of disease progression after 5 years. Conclusions: Patients with binocular involvement OAML at the start of the disease had a poor prognosis, but treatment could reduce the risk of recurrence/progression. Systemic therapy is one of the first-line treatment options for patients with OAML, who require long-term monitoring.


Subject(s)
Eye Neoplasms/radiotherapy , Humans , Lymphoid Tissue/pathology , Lymphoma, B-Cell, Marginal Zone/therapy , Prognosis , Retrospective Studies , Treatment Outcome
3.
Oncol. (Guayaquil) ; 31(2): 114-121, 31 de agosto 2021.
Article in Spanish | LILACS | ID: biblio-1284436

ABSTRACT

Introducción: El linfoma de células T intestinal epiteliotrópico monomórfico es una neoplasia derivada de linfocitos intraepiteliales. La etiología es desconocida, pero se ha asociado a enfermedad celíaca o a síndrome de malabsorción, aunque en la actualidad se considera un linfoma esporádico. La histopatología se caracteriza por linfocitos de tamaño intermedio a pequeño, con mínimo pleomorfismo, que generalmente expresan CD8 y CD56. Reporte de caso: Mujer de 60 años con dispepsia de larga evolución, fue ingresada por dolor abdominal agudo, diarrea, nausea, vómito bilioso y pérdida de peso. En los estudios se determinó anemia microcítica hipocrómica y desequilibrio hidroelectrolítico. Se evidenció por tomografía de abdomen una lesión nodular esplénica y engrosamiento concéntrico segmentario de yeyuno e íleon distal asociado a la presencia de líquido libre en cavidad abdominal, se consideró una masa tumoral. Evolución: Se realizó una laparotomía exploratoria con resección de yeyuno-transverso, en patología se determinó la presencia de 3 tumores: a nivel de yeyuno de 16x8.5x6 cm, en el íleon distal de 13x6.5x3 cm y en el ciego de 5x4x2cm con histología de linfoma no Hodgkin T de alto grado, intestinal primario, de tipo monomórfico epiteliotrópico (MEITL). Fue dada de alta diez días después. Dos semanas luego desarrollo sepsis de foco urinario, deshidratación, síndrome de intestino corto, hiper-amonemia y neumonía de focos múltiples con derrame pleural bilateral. Falleció al sexto día de hospitalización. Conclusiones: El MEITL es una neoplasia agresiva primaria intestinal de reciente identificación y pobre pronóstico. No se conocen en su totalidad los mecanismos moleculares asociados a esta entidad. El caso presentado demostró un curso clínico similar al reportado en la literatura.


Introduction: Monomorphic epitheliotropic intestinal T-cell lymphoma is a derived neoplasia of intraepithelial lymphocytes. The etiology is unknown, but it has been associated with celiac disease or malabsorption syndrome, although it is currently considered a sporadic lymphoma. Histopatholo-gy is characterized by medium to small lymphocytes with minimal pleo-morphism, which generally express CD8 and CD56. Case report: A 60-year-old woman with long-standing dyspepsia was admitted for acute abdominal pain, diarrhea, nausea, bilious vomiting, and weight loss. In the studies, hypochromic microcytic anemia and fluid and electrolyte imbalance were determined. A splenic nodular lesion and segmental concentric thickening of the jejunum and distal ileum associated with the presence of free fluid in the abdominal cavity was evidenced by abdominal tomography, it was considered a tumor mass. Evolution: An exploratory laparotomy was performed with transverse jejunum resection, in pathol-ogy the presence of 3 tumors was determined: at the jejunum level of 16x8.5x6 cm, in the distal ileum of 13x6.5x3 cm and in the cecum of 5x4x2cm with histology of high-grade non-Hodgkin T lymphoma, primary intestinal, epitheliotropic monomorphic type (MEITL). She was discharged ten days later. Two weeks later, she developed sepsis with a urinary focus, dehydration, short bowel syn-drome, hyper-amonemia, and multiple-focus pneumonia with bilateral pleural effusion. He died on the sixth day of hospitalization. Conclusions: MEITL is a recently identified aggressive primary intestinal neoplasm and poor prog-nosis. The molecular mechanisms associated with this entity are not fully known. The case presented showed a clinical course similar to that reported in the literature.


Introdução: O linfoma intestinal monomórfico epiteliotrópico de células T é uma neoplasia derivada de linfócitos intraepiteliais. A etiologia é desconhecida, mas tem sido associada à doença celíaca ou síndrome de má absorção, embora seja atualmente considerado um linfoma esporádico. A histopatologia é caracterizada por linfócitos médios a pequenos com pleomorfismo mínimo, que geralmente expressam CD8 e CD56. Relato do caso: Mulher de 60 anos com dispepsia de longa data foi admitida por dor abdominal aguda, diarreia, náuseas, vômitos biliosos e perda de peso. Nos estudos, foram determinados a anemia microcítica hipocrômica e o desequilíbrio hidroeletrolítico. Lesão nodular esplênica e espessamento concêntrico segmentar do jejuno e íleo distal associado à presença de líquido livre na cavidade abdominal foi evidenciado pela tomografia abdominal, considerada massa tumoral. Evolução: Foi realizada laparotomia exploradora com ressecção transversa do jejuno, na anatomia patológica foi determinada a presença de 3 tumores: ao nível do jejuno de 16x8,5x6 cm, no íleo distal de 13x6,5x3 cm e no ceco de 5x4x2cm com histologia de epiteliotrópico monomórfico monomórfico tipo linfoma T intestinal primário não-Hodgkin (MEITL). Ela teve alta dez dias depois. Duas semanas depois, desenvolvimento de sepse de foco urinário, desidratação, síndrome do intestino curto, hiperamonemia e pneumonia de foco múltiplo com derrame pleural bilateral. Ele morreu no sexto dia de internação. Conclusões: MEITL é uma neoplasia intestinal primária agressiva recentemente identificada e de mau prognóstico. Os mecanismos moleculares associados a esta entidade não são totalmente conhecidos. O caso apresentado apresentou evolução clínica semelhante à relatada na literatura.


Subject(s)
Humans , Middle Aged , Lymphoma, T-Cell , Lymphoma, B-Cell, Marginal Zone , Case Reports , Intestinal Neoplasms , Intestine, Small
4.
J. vasc. bras ; 20: e20210003, 2021. graf
Article in English | LILACS | ID: biblio-1279378

ABSTRACT

Abstract Chronic ulcerations of the lower extremities are quite a common condition amongst adults, most often caused by chronic venous insufficiency. Irrespective of the main underlying cause, chronic limb ulcerations are usually associated with significant symptoms, impairing daily functioning. Improper or delayed diagnosis and inadequate treatment increase the risk of serious complications, including limb amputations. Malignancies can develop secondary to chronic leg ulcers. About 2.4% of ulcers arising from chronic venous stasis undergo malignant transformation. Squamous cell carcinoma is the most common type of malignancy found in chronic leg ulceration biopsies. Basal cell carcinoma, sarcoma, and melanoma have all been documented infrequently. In the case described here, we found lymphoma of the marginal zone of mucosa-associated lymphoid tissue (MALT), which is an extremely rare cutaneous neoplasm of the lower extremities, but one that may have an association with autoimmune diseases.


Resumo Úlceras crônicas dos membros inferiores são uma condição bastante comum entre adultos, na maioria das vezes causadas por insuficiência venosa crônica. Independente da sua causa principal, úlceras crônicas dos membros estão geralmente associadas a sintomas significativos, prejudicando o funcionamento diário. O diagnóstico inadequado ou tardio e o tratamento inadequado aumentam o risco de complicações graves, inclusive o risco de amputação do membro. Malignidades podem se desenvolver secundariamente em úlceras crônicas da perna. Em torno de 2,4% das úlceras decorrentes de estase venosa crônica sofrem transformação maligna. O carcinoma de células escomosas é o tipo de malignidade mais comum que pode ser encontrada em biópsias de úlceras crônicas da perna. Carcinoma basocelular, sarcoma e melanoma foram raramente documentados. No caso aqui descrito, encontramos linfoma da zona marginal do tecido linfoide associado à mucosa (mucosa-associated lymphoid tissue, MALT), o qual é uma neoplasia cutânea dos membros inferiores extremamente rara mas que pode estar associada a doenças autoimunes.


Subject(s)
Humans , Female , Aged , Venous Insufficiency/complications , Sjogren's Syndrome/complications , Lymphoma, B-Cell, Marginal Zone/complications , Skin Neoplasms , Ulcer , Chronic Disease , Lymphoma, B-Cell, Marginal Zone/diagnosis , Leg
5.
Journal of Experimental Hematology ; (6): 1987-1990, 2021.
Article in Chinese | WPRIM | ID: wpr-922237

ABSTRACT

Hepatitis C virus (HCV) is one of the leading causes of chronic liver disease. HCV is not only related to hepatic malignancies but may also promote lymphoid neoplasms. Currently, research has confirmed HCV-related lymphoma, including marginal zone lymphoma (MZL), lymphoplasmacytic lymphoma (LPL), follicular lymphoma (FL), diffuse large B-cell lymphoma (DLBCL), and Burkitt lymphoma (BL). Many types of research have shown that antiviral therapy can improve or even remission several HCV-related lymphomas. The direct-acting antiviral agents (DAAs) (such as NS5A protease inhibitors, NS4/4A protease inhibitors and viral polymerase inhibitors) have shown clinical advantages of high efficacy and low side effects for both virus elimination and tumor regression in several HCV-related lymphomas, which may make the selected HCV-related lymphoma patients treated without chemotherapy. In this review the research progress and development direction of antiviral therapy in treating HCV-related lymphoma has summarized briefly.


Subject(s)
Antiviral Agents/therapeutic use , Hepacivirus , Hepatitis C/drug therapy , Hepatitis C, Chronic/drug therapy , Humans , Lymphoma, B-Cell, Marginal Zone/drug therapy , Lymphoma, Large B-Cell, Diffuse/drug therapy
6.
Autops. Case Rep ; 10(1): e2019130, Jan.-Mar. 2020. ilus
Article in English | LILACS | ID: biblio-1087529

ABSTRACT

Mucosa-associated lymphoid tissue (MALT) lymphoma is the most common type of extra-nodal non-Hodgkin lymphoma, which mostly involves the stomach. The clinical suspicion and diagnosis are often challenging because of the lack of specific symptoms and conventional endoscopic findings. Three magnifying endoscopic signs of the gastric mucosa have been described as highly specific to the diagnosis of MALT lymphoma, such as (i) tree-like appearance of the microvessels; (ii) non-structural area; and (iii) ballooning crypt pattern. We report the case of a middle-aged woman in which these signs appeared chronologically over a period of 2 years, showing the association of the sequence of the endoscopic findings and the final histological diagnosis of gastric MALT lymphoma.


Subject(s)
Humans , Female , Middle Aged , Stomach Neoplasms/diagnosis , Lymphoma, B-Cell, Marginal Zone/diagnosis , Endoscopy
7.
Article in Chinese | WPRIM | ID: wpr-942139

ABSTRACT

OBJECTIVE@#To analyze the clinicopathological characteristics of mucosa associated lymphoid tissue (MALT) lymphoma secondary to Sjögren' s syndrome (SS) (SS-MALT lymphoma) in salivary gland and to explore the value of the combined application of histopathological morphology, protein expression and molecular phenotype in pathological diagnosis and prognostic evaluation of SS-MALT lymphoma.@*METHODS@#Sixteen patients with SS-MALT lymphoma were collected from 260 patients who were diagnosed with SS in Peking University School and Hospital of Stomatology from January 1997 to December 2016. Twelve patients with non-MALT lymphoma secondary to SS (non-SS-MALT lymphoma) in salivary gland were selected as controls. The clinical data of the patients were retrospectively reviewed and analyzed. All the patients were followed up until December 20, 2019. Hematoxylin-eosin staining, immunohistochemistry, polymerase chain reaction (PCR) and fluorescence in situ hybridization (FISH) techniques were used to observe the histologic characteristics and to detect the manifestations of light chain restrictive expression, immunoglobulin (Ig) gene clonal rearrangement, chromosome translocation and gene abnormality, so as to evaluate their values in pathological diagnosis and prognostic evaluation.@*RESULTS@#The malignant transformation rate of SS to MALT lymphoma was about 6.15%, ranged from 3 to 240 months, during which 2 patients died due to high-level deterioration. Microscopically, the acini of the glandular tissue were atrophied and destroyed. The tumor cells dominated by central cell-like lymphocytes grew diffusely, destroying the epithelial islands. All SS-MALT lymphoma cases were positive in CD20 and Pax5. Half of them had the Ki-67 proliferation index of 10% or less, and half greater than 10%. 93.75% cases expressed AE1/AE3 protein, which showed the residual glandular epithelium. All the tumor cells were negative in CD3ε, and the plasma cells were detected by CD138 antigen. The light chain restrictive expression of κ and λ was 37.5% in SS-MALT lymphoma group. The positive detection rates of immunoglobulin heavy chain (IgH)-FR1, IgH-FR2, IgH-FR3, immunoglobulin kappa chain (IgK)-A, and IgK-B in SS-MALT lymphoma group were 33.3%, 53.3%, 33.3%, 20.0%, and 26.7%, respectively, and 93.3% when together used with IgH and IgK. The positive rates of the MALT1, IGH and BCL6 genes with dual color break-apart probes were 36.4%, 27.3% and 27.3%, and the detection rate of chromosome translocation and gene abnormality by applying the three probes was 72.7%.@*CONCLUSION@#There are no specific histological characteristics and protein phenotypes in the histologic diagnosis of SS-MALT lymphoma in salivary gland. The combined application of histopathological manifestations, immunohistochemistry, PCR and FISH techniques helps the accurate pathologic diagnosis of the disease. Although SS-MALT lymphoma is considered as an indolent lymphoma with a relatively favorable prognosis, the regular return visit and long-term follow-up should be conducted to detect the clues of recurrence and advanced deterioration.


Subject(s)
Humans , In Situ Hybridization, Fluorescence , Lymphoma, B-Cell, Marginal Zone/etiology , Neoplasm Recurrence, Local , Retrospective Studies , Salivary Glands
8.
Rev. medica electron ; 41(4): 979-992, jul.-ago. 2019. tab
Article in Spanish | LILACS, CUMED | ID: biblio-1094102

ABSTRACT

RESUMEN La infección por helicobacter pylori afecta aproximadamente al 50% de la población mundial, es causante de gastritis crónica, úlcera péptica, cáncer gástrico y linfoma del tejido linfoide asociado a la mucosa. Desde su descubrimiento, la erradicación ha sido uno de los más importantes retos en Gastroenterología. En muchos países se desconoce la prevalencia de resistencia primaria del microorganismo a los diferentes antibióticos que empíricamente se utilizan, y por no realizar pruebas de rutina que verifican su erradicación en la práctica diaria, se ignora la efectividad de los esquemas prescritos. El incremento progresivo de la resistencia a la claritromicina y metronidazol, unido a una ausencia de antibioticoterapia alternativa, desafía la capacidad para eliminar de manera efectiva a ésta bacteria. El subcitrato de bismuto ha resurgido y su adición en la terapia ha permitido aumentar las tasas de curación por encima del 90%. Actualmente se invoca que para mejorar la eficacia en el tratamiento se debe combinar una supresión potente del ácido gástrico en tratamientos combinados cuádruples con una duración de 14 días, para la mayoría de los casos. La adherencia al tratamiento es crucial para obtener buenos resultados terapéuticos.


ABSTRACT The infection for helicobacter pylori affects approximately to the world population's 50%, it is causing of chronic gastritis, peptic ulcer, gastric cancer and linfoma associated to the mucous one. From their discovery, the eradication has been one of the most important challenges in Gastroenterología. In many countries the prevalencia of primary resistance is ignored from the microorganism to the different antibiotics that empirically they are used, and for not carrying out routine tests that verify its eradication in the daily practice, the effectiveness of the prescribed outlines it is ignored. The progressive increment of the resistance to the claritromicina and metronidazol, together to an absence of alternative antibioticotherapy, challenges the capacity to eliminate from an effective way to this bacteria. The bismuth subcitrato has resurged and its addition in the therapy has allowed to increase the cure rates above 90%. At the moment it is invoked that to improve the effectiveness in the treatment, that is should combine a potent suppression of the gastric acid in combined quadruple treatments with a duration of 14 days, for most of the cases. The adherence to the treatment is crucial to obtain therapeutic good results.


Subject(s)
Humans , Drug Resistance, Microbial , Risk Factors , Helicobacter Infections/etiology , Helicobacter Infections/drug therapy , Helicobacter Infections/epidemiology , Treatment Outcome , Drug Therapy, Combination , Disease Eradication , Peptic Ulcer/diagnosis , Stomach Neoplasms/diagnosis , Tetracycline/therapeutic use , Bismuth/therapeutic use , Adenocarcinoma/diagnosis , Clarithromycin , Lymphoma, B-Cell, Marginal Zone/diagnosis , Acidity Regulator , Proton Pump Inhibitors/therapeutic use , Treatment Adherence and Compliance , Gastritis/diagnosis , Gastroenterology , Metronidazole , Metronidazole/therapeutic use
9.
Rev. colomb. cancerol ; 23(2): 62-64, abr.-jun. 2019. graf
Article in Spanish | LILACS | ID: biblio-1042753

ABSTRACT

Resumen El linfoma MALT es una forma poco frecuente de linfoma no Hodking de células B de bajo grado, que se desarrolla a expensas del tejido linfoide de las membranas mucosas. La localización más frecuente a nivel gastrointestinal es el estómago relacionando con la infección por Helicobacter pylori. El linfoma MALT colónico es una entidad extremadamente rara y cuya incidencia no supera el 5% de los casos en países asiáticos, con series porcentualmente menores al 2,5%, siendo la ubicación de este tipo de linfoma la más inusual de todo el tracto digestivo en comparación con otras neoplasias malignas que afectan al colon. Los autores exponen el caso infrecuente de presentación de linfoma tipo MALT de localización colónica en un paciente varón de 51 años, describiendo la clínica, los resultados de pruebas complementarias y el tratamiento recibido por el paciente.


Abstract MALT lymphoma is a rare form of low-grade non-Hodking B-cell lymphoma, which develops at the expense of lymphoid tissue of the mucous membranes. The most frequent location at the gastrointestinal level is the stomach related to the infection by Helicobacter pylori. Colonic MALT lymphoma is an extremely rare entity and the incidence of which does not exceed 5% of cases in Asian countries, with a series of less than 2.5%, with the location of this type of lymphoma being the most unusual of the entire digestive tract compared to other malignant neoplasms that affect the colon. The authors present the infrequent case of presentation of MALT-type lymphoma of colonic location in a 51-year-old male patient, describing the clinic, the results of complementary tests and the treatment received by the patient.


Subject(s)
Humans , Male , Middle Aged , Colon , Lymphoma, B-Cell, Marginal Zone , Lymphoma, Non-Hodgkin , Lymphoma
10.
Medicina (B.Aires) ; 79(3): 208-211, June 2019. ilus
Article in Spanish | LILACS | ID: biblio-1020062

ABSTRACT

Los linfomas derivados del tejido linfoide asociado a las mucosas (MALT) son entidades poco frecuentes, de bajo grado de malignidad con escaso o nulo compromiso ganglionar y representan cerca del 80% de los linfomas primarios pulmonares. La aparición sincrónica con adenocarcinoma de pulmón es un hallazgo extremadamente infrecuente. Presentamos el caso de un hombre de 68 años, ex-tabaquista, en quien durante el seguimiento de un nódulo pulmonar se identificó un segundo nódulo y la biopsia quirúrgica confirmó el diagnóstico de ambas neoplasias.


The lymphomas of mucosa-associated lymphoid tissue (MALT), are uncommon entities, of low grade of malignancy with very infrequent or no lymph node involvement. They represent about 80% of the primary pulmonary lymphomas. The synchronous appearance with lung adenocarcinoma is an extremely rare finding. We present the case of an ex-smoker 68-year-old man, in whom, in the follow-up of a pulmonary nodule, a second pulmonary nodule was found. The surgical biopsy confirmed the diagnosis of both neoplasms.


Subject(s)
Humans , Male , Aged , Adenocarcinoma/diagnosis , Lymphoma, B-Cell, Marginal Zone/diagnosis , Adenocarcinoma of Lung/diagnosis , Lung Neoplasms/diagnosis , Neoplasms, Multiple Primary/diagnosis , Adenocarcinoma/surgery , Adenocarcinoma/pathology , Adenocarcinoma/diagnostic imaging , Tomography, X-Ray Computed , Adenocarcinoma of Lung/surgery , Adenocarcinoma of Lung/pathology , Adenocarcinoma of Lung/diagnostic imaging , Lung Neoplasms/surgery , Lung Neoplasms/pathology , Lung Neoplasms/diagnostic imaging
11.
Article in English | WPRIM | ID: wpr-739202

ABSTRACT

Mucosa-associated lymphoid tissue (MALT) lymphoma is an uncommon form of non-Hodgkin lymphoma involving the mucosa-associated lymphoid tissue. Most commonly affected organ is the stomach. But, it could affect almost every organ in the whole body. If they have suspicious lesion, excision biopsy could be made. For staging, blood test including blood smear, abdomen and chest tomography or scan will be checked. Also, bone marrow test can be done if it is needed. The patient had visited the clinic for palpable mass on right lower eyelid. With excisional biopsy, it was diagnosed as lymphoid hyperplasia on pathologic test. But 2 years later, the patient came with recurrent symptom for our department with worry. At that time, we recommended excisional soft tissue biopsy under general anesthesia. Unfortunately, it was revealed MALT lymphoma on pathologic finding. It turned out to be stage 3 in Ann Arbor staging system without B symptoms. Hematologic consultation was made and she was treated with adjuvant chemotherapy for eight cycles to complete remission. We report a case of MALT lymphoma on subcutaneous tissue at right lower eyelid previously diagnosed as lymphoid hyperplasia.


Subject(s)
Abdomen , Anesthesia, General , Biopsy , Bone Marrow , Chemotherapy, Adjuvant , Eyelids , Hematologic Tests , Humans , Hyperplasia , Lymphoid Tissue , Lymphoma , Lymphoma, B-Cell, Marginal Zone , Lymphoma, Non-Hodgkin , Stomach , Subcutaneous Tissue , Thorax
12.
Korean Journal of Medicine ; : 443-448, 2019.
Article in Korean | WPRIM | ID: wpr-759956

ABSTRACT

Primary lymphoma of pancreatic mucosa-associated lymphoid tissue (MALT) is extremely rare. Initial suspicion of primary pancreatic lymphoma is hampered by its low incidence. However, it should always be included in a differential diagnosis of pancreatic mass with unusual features, because an accurate diagnosis can avoid unnecessary surgical intervention. A 70-year-old woman presented with melena associated with a mass on the pancreatic head. Endoscopic ultrasonography-guided core-needle biopsy of the pancreatic mass revealed MALT lymphoma. The patient is currently undergoing radiation therapy. We present a case of primary lymphoma of the pancreatic MALT with a review of the literature.


Subject(s)
Aged , Biopsy , Diagnosis , Diagnosis, Differential , Female , Head , Humans , Incidence , Lymphoid Tissue , Lymphoma , Lymphoma, B-Cell, Marginal Zone , Melena
13.
Article in Chinese | WPRIM | ID: wpr-941787

ABSTRACT

OBJECTIVE@#To discuss the clinical characteristics and diagnostic and therapeutic considerations of primary thyroid lymphoma (PTL) by reviewing PTL cases.@*METHODS@#In the study, 12 cases of PTL diagnosed and treated in Peking University First Hospital between January 1995 and September 2015 were identified. The clinical characteristics, management experiences and prognosis of these cases were reviewed retrospectively.@*RESULTS@#A total of 12 PTL patients (four males and eight females) were collected, with an average age of 63 years (42 to 81 years) at the time of diagnosis. The average time to clarify diagnosis was 5 months (0.5 to 24 months). Eleven patients presented with a rapidly growing neck mass and visited surgical department, except one complained of coughing and suffocated. Seven patients were hypothyroid, and four were euthyroid at the time of diagnosis. In sonography of 11 cases, nine showed bilateral nodules, with an average diameter of 3.87 cm. Pathologic diagnosis of non-Hodgkin's lymphoma was confirmed in all the 12 cases by means of partial thyroidectomy (four) or core needle biopsy (eight). The pathological subtypes were diffuse large B cell lymphoma in nine patients, mucosa-associated lymphoid tissue lymphoma (MALToma) in two, and small B cell lymphoma in the other one patient. Five patients were concomitant with Hashimoto's thyroiditis. Eleven patients received chemotherapy. Only one patient did not have any further treatment after operation due to an inertia type of tumor. The median overall survival time was 24 months (1-117 months), three patients died. Among the patients who survived, seven completed chemotherapy without disease progression, one MALToma case did not receive chemotherapy after thyroidectomy but was still alive with PTL, and one patient just finished his second course of chemotherapy.@*CONCLUSION@#The diagnosis of PTL should be considered when dealing with rapidly growing goiters in elder female Hashimoto's thyroiditis patients whose B ultrasound indicates hypoechogenicity in thyroid nodules or parenchyma, especially with lymphadenopathy and tracheal compressions. Timely use of coreneedle biopsy on suspicious cases can avoid unnecessary surgical trauma, and chemotherapy is the main treatment.


Subject(s)
Adult , Aged , Aged, 80 and over , Female , Hashimoto Disease , Humans , Lymphoma, B-Cell, Marginal Zone , Male , Middle Aged , Retrospective Studies , Thyroid Neoplasms
14.
Article in Chinese | WPRIM | ID: wpr-941766

ABSTRACT

OBJECTIVE@#To investigate the clinicopathological features and prognostic factors in lymphoma of parotid origin.@*METHODS@#Clinicopathological data of the patients with parotid lymphoma who were initially diagnosed in Peking University Hospital of Stomatology from 2006 to 2016 were collected and analyzed retrospectively. The patients were followed-up for 5 to 149 months with a median period of 45 months, and the factors influencing the prognosis were evaluated.@*RESULTS@#A total of 41 patients with primary parotid lymphoma were included in this retrospective study. The rate of male to female was 1:2.15. The median age was 57 years (ranging from 8 months to 91 years). According to WHO classification, 40 cases (97.1%) were diagnosed as non-Hodgkin lymphoma (NHL), including 15 cases of extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT), 14 cases of diffuse large B cell lymphoma (DLBCL) as well as 4 cases of follicular lymphoma, while other subtypes of NHL were rare. Only one case was diagnosed as Hodgkin lymphoma. Regarding the clinical staging at the initial diagnosis, 37 patients (90.2%) were diagnosed as stage IE or IIE of the disease, while 4 patients (9.8%) as stage IIIE or stage IVE. Seven patients (17.1%) had a history of Sjögren syndrome (SS), all of whom were MALT lymphoma. The mean ill duration of the 41 patients were 20.7 months. Thirty-two patients (78%) presented a slowly growing painless mass in the parotid gland. Treatment options included localized therapy and systemic therapy, all of whom had good curative effect. Nine patients (21.9%) died during the follow-up period. The overall survival rates of 2-year and 5-year were 84.5% and 81.3% respectively. The univariate analysis demonstrated statistically significant differences for accelerated growth of tumor (P=0.005), and presence of tumor capsule (P=0.011). The multi-univariate analysis demonstrated statistically significant differences for presence of tumor capsule (P=0.041).@*CONCLUSION@#A large majority of primary parotid lymphoma were NHL, among which MALT lymphoma and DLBCL were common subtypes. Most patients presented an indolent mass in parotid gland, which should be distinguished from the parotid benign tumors. SS is closely related to the pathogenesis of MALT lymphoma. The prognosis is better than that of other malignant parotid tumors. Absence of tumor capsule may predict a poor prognosis in patients with parotid lymphoma.


Subject(s)
Adolescent , Adult , Aged , Aged, 80 and over , Child , Child, Preschool , Female , Humans , Infant , Lymphoma, B-Cell, Marginal Zone , Lymphoma, Large B-Cell, Diffuse , Male , Middle Aged , Parotid Gland , Parotid Neoplasms , Prognosis , Retrospective Studies , Young Adult
15.
Article in Korean | WPRIM | ID: wpr-787518

ABSTRACT

Mucosa-associated lymphoid tissue (MALT) lymphoma has specific clinical and pathologic features. The most common site MALT lymphomas is the stomach; however, it can also occur in other organs, such as the salivary glands. MALT lymphoma is rare, but its prognosis is good. A 32-year-old man visited Konyang university hospital with parotid mass. Superficial partial parotidectomy was performed to exclude lymphoid neoplasms. IgH gene rearrangement analysis of the surgical specimen led to the diagnosis of MALT lymphoma. The patient underwent esophagogastroduodenoscopy, positron emission tomography-computed tomography, and whole-body bone scan. Regional or distant metastasis was not observed on staging workup. The patient underwent postoperative radiation therapy, there has been no recurrence of MALT lymphoma to date. Here, we report this rare case of parotid MALT lymphoma that was treated with surgery and postoperative radiation therapy.


Subject(s)
Adult , Diagnosis , Electrons , Endoscopy, Digestive System , Gene Rearrangement , Humans , Lymphoid Tissue , Lymphoma , Lymphoma, B-Cell, Marginal Zone , Neoplasm Metastasis , Parotid Gland , Prognosis , Recurrence , Salivary Glands , Stomach
16.
Article in Korean | WPRIM | ID: wpr-787228

ABSTRACT

The stomach is the most common primary site of an extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT) type, which is characterized by an indolent clinical course. A diagnosis of gastric MALT lymphoma requires an endoscopic biopsy that should be confirmed by an experienced pathologist. Gastric MALT lymphoma shows a variable endoscopic appearance, including erosion, erythema, discoloration, atrophy, ulcer, and subepithelial lesion. The distribution is often multifocal. Therefore, clinical suspicion and multiple biopsies are essential for an accurate diagnosis. Gastric MALT lymphoma is almost invariably associated with a Helicobacter pylori (H. pylori) infection. H. pylori eradication therapy is the mainstay of treatment, which must be delivered to all patients regardless of the H. pylori infection status or stage. For patients who have failed to achieve remission following eradication therapy, radiotherapy or chemotherapy can be considered. Radiotherapy is an effective treatment modality for a localized stage and shows excellent outcomes. In the presence of disseminated or advanced disease, chemotherapy and/or immunotherapy with the anti-CD20 monoclonal antibody, rituximab, can be applied. Treatment should be individualized according to the stage and symptoms, as well as the patients' preference. Given that the clinical course of gastric MALT lymphoma is usually indolent, watchful waiting may be an adequate strategy in selected cases where scheduled follow-up is guaranteed.


Subject(s)
Atrophy , Biopsy , Diagnosis , Drug Therapy , Erythema , Follow-Up Studies , Helicobacter pylori , Humans , Immunotherapy , Lymphoma, B-Cell, Marginal Zone , Radiotherapy , Rituximab , Stomach , Ulcer , Watchful Waiting
17.
Article in English | WPRIM | ID: wpr-785316

ABSTRACT

The incidence of gastric mucosa-associated lymphoid tissue (MALT) lymphoma is increasing worldwide, but the diagnosis is difficult. Most patients are asymptomatic or complain of nonspecific gastrointestinal symptoms. As the endoscopic features of gastric MALT lymphoma are variable and nonspecific, the possibility of this condition may be overlooked during esophagogastroduodenoscopy, and it remain undiagnosed. Therefore, this condition needs to be considered when an abnormal mucosa is observed during this procedure. Biopsy performed during endoscopy is the primary diagnostic test, but false negative results are possible; large numbers of samples should be collected from both normal and abnormal mucosae. Endoscopic ultrasonography is useful to assess the depth of invasion and to predict the treatment response. After treatment, follow-up tests are required every 3 months until complete remission is achieved, and annually thereafter. Early diagnosis of gastric MALT lymphoma is difficult, and its diagnosis and follow-up require wide experience and competent endoscopic technique.


Subject(s)
Biopsy , Diagnosis , Diagnostic Tests, Routine , Early Diagnosis , Endoscopy , Endoscopy, Digestive System , Endoscopy, Gastrointestinal , Endosonography , Follow-Up Studies , Humans , Incidence , Lymphoid Tissue , Lymphoma , Lymphoma, B-Cell, Marginal Zone , Mucous Membrane , Stomach Neoplasms
18.
Article in Korean | WPRIM | ID: wpr-761576

ABSTRACT

BACKGROUND/AIMS: Atrophic gastritis and intestinal metaplasia are sequential consequences of chronic Helicobacter pylori (H. pylori) infection. These conditions are well known to increase the risk of gastric adenocarcinoma development. Gastric mucosa-associated lymphoid tissue (MALT) lymphoma is also a malignant consequence of H. pylori infection, but the relationship between gastric MALT lymphoma and atrophic gastritis-intestinal metaplasia has not been a focus of interest. We investigated the clinical characteristics of atrophic gastritis and intestinal metaplasia in patients with gastric MALT lymphoma. MATERIALS AND METHODS: A study was conducted by reviewing the electronic medical records of patients diagnosed as having gastric MALT lymphoma at an academic institute, the Yeouido St. Mary's Hospital, Seoul, Korea, between January 2001 and December 2018. RESULTS: Fifty-eight subjects were enrolled consecutively during the study period and analyzed retrospectively. The patients' mean age was 56.9 years old. The male-to-female ratio was 1.15 (31/27). On histological examination, background atrophic gastritis and intestinal metaplasia were detected in 26.8% (15/58) of cases. Serum pepsinogen I, II and gastrin levels, as serological markers of atrophy, were evaluated in 28 subjects. Three (5.2%) of the 28 cases were compatible with serological atrophic gastritis (pepsinogen I/II ratio of <3 and pepsinogen I level of <70 ng/mL). CONCLUSIONS: In patients with gastric MALT lymphoma, the prevalence of background mucosal atrophy or intestinal metaplasia was 26.8% on histological examination and 5.2% on serological analyses. These rates are lower than those in patients with gastric adenocarcinoma. This result suggests a different carcinogenic pathway of gastric MALT lymphoma from that of adenocarcinoma.


Subject(s)
Adenocarcinoma , Atrophy , Electronic Health Records , Gastrins , Gastritis, Atrophic , Helicobacter pylori , Helicobacter , Humans , Korea , Lymphoid Tissue , Lymphoma , Lymphoma, B-Cell, Marginal Zone , Metaplasia , Pepsinogen A , Prevalence , Retrospective Studies , Seoul , Stomach
20.
Article in Korean | WPRIM | ID: wpr-719439

ABSTRACT

BACKGROUND/AIMS: The eradication of Helicobacter pylori (H. pylori) is an effective treatment in gastric mucosa-associated lymphoid tissue (MALT) lymphoma associated with H. pylori infection. However, the treatment strategy in gastric MALT lymphoma patients who are H. pylori-negative or unresponsive to H. pylori eradication therapy remains controversial. In this study, we investigated the clinical efficacy of treatments other than H. pylori eradication therapy in these groups of patients. METHODS: This was a retrospective single-center study based on the medical records of patients diagnosed with gastric MALT lymphoma at Yeungnam University Medical Center between January 2005 and December 2016. Patients were treated with H. pylori eradication therapy, chemotherapy, or radiotherapy according to their H. pylori infection status and stage of gastric MALT lymphoma. RESULTS: Of the 68 eligible patients, 50 were enrolled in the study. Of the 42 patients with H. pylori-positive gastric MALT lymphoma, 36 (81.7%) were treated with H. pylori eradication therapy as primary treatment and 25 (69.4%) achieved a complete response (CR). Patients without a CR after H. pylori eradication therapy (n=11, 30.6%) received radiotherapy as a secondary treatment. Two patients with H. pylori-positive gastric MALT lymphoma and eight with H. pylori-negative gastric MALT lymphoma received radiotherapy as the primary treatment. CR was achieved in all 21 patients treated with radiotherapy as primary or secondary treatment. The 5-year progression-free survival rate after radiotherapy was 92.9%. CONCLUSIONS: Radiotherapy may be a worthwhile treatment option in patients with H. pylori-negative MALT lymphoma or H. pylori-positive MALT lymphoma that is not responsive to H. pylori eradication therapy.


Subject(s)
Academic Medical Centers , Disease-Free Survival , Drug Therapy , Helicobacter pylori , Helicobacter , Humans , Lymphoid Tissue , Lymphoma , Lymphoma, B-Cell, Marginal Zone , Medical Records , Radiotherapy , Retrospective Studies , Stomach Neoplasms , Treatment Outcome
SELECTION OF CITATIONS
SEARCH DETAIL