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Esophageal involvement of mantle cell lymphoma presenting with multiple lymphomatous polyposis:A single-center study 认领 引用
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作者 Makoto Saito Yoshitaka Oda +7 位作者 Hirokazu Sugino Toma Suzuki Emi Yokoyama Minoru Kanaya Koh Izumiyama Akio Mori Masanobu Morioka Takeshi Kondo 《World Journal of Gastrointestinal Oncology》 SCIE 2025年第5期234-241,共8页
BACKGROUND In addition to nodal lesions,over 30%of mantle cell lymphomas(MCLs)also have gastrointestinal involvement,characteristically presenting as multiple lymphomatous polyposis(MLP),which rarely involve the esoph... BACKGROUND In addition to nodal lesions,over 30%of mantle cell lymphomas(MCLs)also have gastrointestinal involvement,characteristically presenting as multiple lymphomatous polyposis(MLP),which rarely involve the esophagus.Most related papers have been case reports,and no comprehensive studies have been conducted;thus,the actual clinical situation has remained unknown for a long time.AIM To elucidate the actual clinical situation of esophageal involvement of MCL presenting with MLP,including its prognosis.METHODS From January 2001 to December 2021,among MCL patients whose gastrointestinal lesions were histopathologically confirmed by endoscopic biopsy at our center,6 patients with MLP in the esophagus were selected.We retro-spectively examined the clinical features of these patients,including their prognosis.RESULTS In all patients,multiple lesions were present in the gastrointestinal tract other than the esophagus and in the lymph nodes throughout the body,and most patients also had lesions involving the bone marrow or spleen.Most of the treatments include chemotherapy,with a 50%survival period of less than 2 years and a 5-year survival rate of approximately 30%,indicating a poor prognosis.CONCLUSION Patients with esophageal involvement of the MCL who presented with MLP had a large tumor burden and poor survival. 展开更多
关键词 Multiple lymphomatous polyposis Mantle cell lymphoma Gastrointestinal lesion Esophageal involvement Survival prognosis Retrospective study
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Colorectal follicular lymphoma:A single-center retrospective study 认领 引用
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作者 Makoto Saito Minoru Kanaya +5 位作者 Naoki Miyashita Emi Yokoyama Koh Izumiyama Akio Mori Masanobu Morioka Takeshi Kondo 《World Journal of Gastrointestinal Oncology》 SCIE 2025年第10期223-228,共6页
BACKGROUND The concept of“duodenal-type follicular lymphoma(FL)”has already been established as a disease entity.On the other hand,because FL that develops in the colorectum is a rare disease,its clinical characteri... BACKGROUND The concept of“duodenal-type follicular lymphoma(FL)”has already been established as a disease entity.On the other hand,because FL that develops in the colorectum is a rare disease,its clinical characteristics,including its treatment and outcome,are poorly understood.AIM To clarify the characteristic clinical features of colorectal FL.METHODS We identified 5 patients with FL from December 2010 to July 2022 whose colorectal lesions were confirmed by endoscopic biopsy at our hospital and retrospectively examined their clinical features,including endoscopic findings,treatment,and long-term outcomes.RESULTS The median age of the patients was 70 years(range 62-74 years,3 males and 2 females),and 2 patients were considered to have systemic FL lesions.Endoscopic findings revealed elavated lesions in all 5 patients(polypoid 3,flat elavated 1,papular 1).Only 1 patient underwent therapeutic intervention,and 4 patients chose watchful waiting.Except for 1 patient in which the lesion spontaneously regressed,the disease recurred or progressed in 4 patients,3 of whom eventually achieved near complete remission with the administration of rituximab and bendamustine(±polatuzumab vedotin).The 5 patients in this study were still alive or exhibited long-term survival before death;the survival time ranged from 8-29 years after the onset of lymphoma.CONCLUSION In the present study,colorectal FL progressed slowly,and overall survival was good because it was sensitive to anticancer drugs even after the disease progressed without initial therapeutic intervention. 展开更多
关键词 Follicular lymphoma Colorectum Duodenal-type follicular lymphoma Endoscopic findings Treatment Longterm outcome
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Repeated hemorrhagic ulcers of the esophagus associated with acquired hemophilia A:A case report 认领 引用
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作者 Makoto Saito Kencho Miyashita +6 位作者 Masahiro Ieko Emi Yokoyama Minoru Kanaya Koh Izumiyama Akio Mori Masanobu Morioka Takeshi Kondo 《World Journal of Gastrointestinal Endoscopy》 2025年第12期186-192,共7页
Acquired hemophilia A(AHA)is a rare blood disorder that can cause life-threatening severe bleeding because of the development of autoantibodies(inhibitors)against factor VIII.AHA is common in elderly patients,and alth... Acquired hemophilia A(AHA)is a rare blood disorder that can cause life-threatening severe bleeding because of the development of autoantibodies(inhibitors)against factor VIII.AHA is common in elderly patients,and although most cases are characterized by subcutaneous or intramuscular bleeding,rare cases of gastrointestinal bleeding have been reported.Controlling gastrointestinal bleeding in patients with AHA is difficult even after multiple endoscopic hemostasis or transcatheter arterial embolization procedures,and these patients are prone to rebleeding.CASE SUMMARY We report the case of a 76-year-old Japanese woman with AHA who presented with repeated bleeding from an esophageal ulcer as the initial symptom.A hemorrhagic ulcer was detected in the lower esophagus,and endoscopic hemostasis using radiofrequency ablation was performed seven times over a month.However,this procedure was unsuccessful,and the patient was transferred to our department.Hypertonic saline-epinephrine injection plus clipping was administered for endoscopic hemostasis,but the treatment response of the patient was poor.After the AHA diagnosis was confirmed,a single dose of a mixture of factors VIIa and X was administered as a bypass hemostatic agent,and the bleeding was successfully controlled.In addition,emicizumab,a bispecific monoclonal antibody that is a substitute for activated factor VIII,was administered,and no further rebleeding was observed.CONCLUSION Multidisciplinary interventions between endoscopists and hematologists are essential to manage rare gastrointestinal bleeding caused by coagulation disorders,such as AHA. 展开更多
关键词 Acquired hemophilia A Gastrointestinal bleeding Esophageal ulcer Endoscopic hemostasis Bypass hemostatic agent Emicizumab Case report
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Transformed gastric mucosa-associated lymphoid tissue lymphoma originating in the colon and developing metachronously after Helicobacter pylori eradication:A case report 认领 引用 被引量:1
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作者 Makoto Saito Zen-Ichi Tanei +7 位作者 Masumi Tsuda Toma Suzuki Emi Yokoyama Minoru Kanaya Koh Izumiyama Akio Mori Masanobu Morioka Takeshi Kondo 《World Journal of Gastrointestinal Oncology》 SCIE 2024年第10期4281-4288,共8页
BACKGROUND Helicobacter pylori(H.pylori)eradication treatment for primary gastric mucosaassociated lymphoid tissue(MALT)lymphoma has already been established.However,t(11;18)(q21;q21)/API2-MALT1 translocation-positive... BACKGROUND Helicobacter pylori(H.pylori)eradication treatment for primary gastric mucosaassociated lymphoid tissue(MALT)lymphoma has already been established.However,t(11;18)(q21;q21)/API2-MALT1 translocation-positive lesions are a type of primary gastric MALT lymphoma in which a response to eradication treatment is difficult to achieve.In addition,trisomy 18 may be associated with diffuse large B-cell lymphoma(DLBCL)transformation of gastric MALT lymphoma.CASE SUMMARY A 66-year-old man was diagnosed with MALT lymphoma in the ascending colon by colonoscopy and biopsy.Two years later,esophagogastroduodenoscopy revealed chronic atrophic gastritis that was positive for H.pylori,and eradication treatment was administered.Two years and nine months later(at the age of 70),a new ulcerative lesion suggestive of MALT lymphoma appeared in the gastric body,and six months later,a similar lesion was also found in the fundus.One year later(4 years and 3 months after H.pylori eradication),at the age of 72,the lesion in the gastric body had become deeper and had propagated.A biopsy revealed a pathological diagnosis of DLBCL.Both MALT lymphoma lesions in the ascending colon and DLBCL lesions in the stomach were positive for the t(11;18)(q21;q21)/API2-MALT1 translocation,and trisomy 18q21 was also detected.After 6 courses of R-CHOP(rituximab,cyclophosphamide,doxorubicin,vincristine and prednisone)chemotherapy,all of the above lesions disappeared[complete remission(CR)],and CR has been maintained for more than 3 years.In addition,both the colonic and gastric lesions were proven to have the same clonality.CONCLUSION Because the patient had a MALT1 translocation with trisomy 18q21,it was thought that this gastric MALT lymphoma developed independently of H.pylori infection and progressed. 展开更多
关键词 Gastric mucosa-associated lymphoid tissue lymphoma Transform Diffuse large B-cell lymphoma Colonic mucosa-associated lymphoid tissue lymphoma Helicobacter pylori eradication MALT1 translocation Case report
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Helicobacter pylori eradication treatment for primary gastric diffuse large B-cell lymphoma:A single-center analysis 认领 引用
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作者 Makoto Saito Akio Mori +7 位作者 Sayaka Kajikawa Emi Yokoyama Minoru Kanaya Koh Izumiyama Masanobu Morioka Takeshi Kondo Zen-Ichi Tanei Ai Shimizu 《World Journal of Clinical Cases》 SCIE 2023年第27期6424-6430,共7页
BACKGROUND Unlike the already established effect of Helicobacter pylori(H.pylori)eradication on gastric mucosa-associated lymphoid tissue(MALT)lymphoma,its therapeutic effect on primary gastric diffuse large B-cell ly... BACKGROUND Unlike the already established effect of Helicobacter pylori(H.pylori)eradication on gastric mucosa-associated lymphoid tissue(MALT)lymphoma,its therapeutic effect on primary gastric diffuse large B-cell lymphoma(DLBCL)is still unclear.AIM To clarify the efficacy of H.pylori eradication treatment for primary gastric DLBCL.METHODS We reported on 3 new cases,and added them to 3 previously reported cases.We analyzed the usefulness of H.pylori eradication treatment for gastric DLBCL for a total of 6 cases at our center.RESULTS Of the 6 patients(27-90 years old,3 males and 3 females),all 3 patients with single lesions(one transformed from MALT lymphoma)achieved complete remission(CR)after H.pylori eradication.Regarding the 2 newly reported cases,CR was maintained for more than 6 years with eradication treatment alone.In contrast,none of the 3 patients with 2 lesions achieved CR.In 1 newly reported case,endoscopic CR was achieved in one lesion,while stable disease was obtained in the other lesion.Two patients with progressive disease responded to standard chemo therapy±radiation and remained in CR for more than 6 years.CONCLUSION We believe it is worthwhile to attempt H.pylori eradication for elderly patients with primary gastric DLBCL in a single lesion with a small tumor burden. 展开更多
关键词 Primary gastric diffuse large B-cell lymphoma Treatment Helicobacter pylori Eradication
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