Primary uterine diffuse large B-cell lymphoma involving the urinary bladder with urinary cytology mimicking carcinomas: A case report

We report a rare case of a 69-year-old woman in whom diffuse large B-cell lymphoma (DLBCL) originated from the uterus and involved the urinary bladder. The cervical smears of the case mostly consisted of discohesive atypical round cells, which were highly suggestive of lymphoma; however, in voided u...

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Main Authors: Sumiyo Adachi, Kazuto Yamazaki, Shan-Guang Liang, Yasuo Ishida
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2015-01-01
Series:Journal of Cytology
Subjects:
Online Access:http://www.jcytol.org/article.asp?issn=0970-9371;year=2015;volume=32;issue=3;spage=181;epage=183;aulast=Adachi
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author Sumiyo Adachi
Kazuto Yamazaki
Shan-Guang Liang
Yasuo Ishida
author_facet Sumiyo Adachi
Kazuto Yamazaki
Shan-Guang Liang
Yasuo Ishida
author_sort Sumiyo Adachi
collection DOAJ
description We report a rare case of a 69-year-old woman in whom diffuse large B-cell lymphoma (DLBCL) originated from the uterus and involved the urinary bladder. The cervical smears of the case mostly consisted of discohesive atypical round cells, which were highly suggestive of lymphoma; however, in voided urine smears, a majority of the cells formed large aggregates of degenerated cells, mimicking those of urothelial carcinoma (UC). The smears also represented some small loose clusters, in which tumor cells formed short chains with nuclear molding, mimicking those of small cell carcinoma. The cytodiagnosis got definitive when we identified the atypical cells that showed CD20+/CD3-/cytokeratin-/NSE- immunophenotype. These are of particular concern as they may have misleading similarities to other epithelial neoplasms when examining lymphoma involving the urinary bladder. Accordingly, this case highlights the importance of immunocytochemistry to rule out malignant lymphoma when encountering large and/or small loose clusters of atypical round cells on urinary cytology.
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spelling doaj.art-fd2e5a4943f74f2f8a0fa01e7b512c922022-12-22T03:52:28ZengWolters Kluwer Medknow PublicationsJournal of Cytology0970-93712015-01-0132318118310.4103/0970-9371.168845Primary uterine diffuse large B-cell lymphoma involving the urinary bladder with urinary cytology mimicking carcinomas: A case reportSumiyo AdachiKazuto YamazakiShan-Guang LiangYasuo IshidaWe report a rare case of a 69-year-old woman in whom diffuse large B-cell lymphoma (DLBCL) originated from the uterus and involved the urinary bladder. The cervical smears of the case mostly consisted of discohesive atypical round cells, which were highly suggestive of lymphoma; however, in voided urine smears, a majority of the cells formed large aggregates of degenerated cells, mimicking those of urothelial carcinoma (UC). The smears also represented some small loose clusters, in which tumor cells formed short chains with nuclear molding, mimicking those of small cell carcinoma. The cytodiagnosis got definitive when we identified the atypical cells that showed CD20+/CD3-/cytokeratin-/NSE- immunophenotype. These are of particular concern as they may have misleading similarities to other epithelial neoplasms when examining lymphoma involving the urinary bladder. Accordingly, this case highlights the importance of immunocytochemistry to rule out malignant lymphoma when encountering large and/or small loose clusters of atypical round cells on urinary cytology.http://www.jcytol.org/article.asp?issn=0970-9371;year=2015;volume=32;issue=3;spage=181;epage=183;aulast=AdachiImmunocytochemistry; lymphoma; urinary bladder; urine; uterine cervix
spellingShingle Sumiyo Adachi
Kazuto Yamazaki
Shan-Guang Liang
Yasuo Ishida
Primary uterine diffuse large B-cell lymphoma involving the urinary bladder with urinary cytology mimicking carcinomas: A case report
Journal of Cytology
Immunocytochemistry; lymphoma; urinary bladder; urine; uterine cervix
title Primary uterine diffuse large B-cell lymphoma involving the urinary bladder with urinary cytology mimicking carcinomas: A case report
title_full Primary uterine diffuse large B-cell lymphoma involving the urinary bladder with urinary cytology mimicking carcinomas: A case report
title_fullStr Primary uterine diffuse large B-cell lymphoma involving the urinary bladder with urinary cytology mimicking carcinomas: A case report
title_full_unstemmed Primary uterine diffuse large B-cell lymphoma involving the urinary bladder with urinary cytology mimicking carcinomas: A case report
title_short Primary uterine diffuse large B-cell lymphoma involving the urinary bladder with urinary cytology mimicking carcinomas: A case report
title_sort primary uterine diffuse large b cell lymphoma involving the urinary bladder with urinary cytology mimicking carcinomas a case report
topic Immunocytochemistry; lymphoma; urinary bladder; urine; uterine cervix
url http://www.jcytol.org/article.asp?issn=0970-9371;year=2015;volume=32;issue=3;spage=181;epage=183;aulast=Adachi
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AT kazutoyamazaki primaryuterinediffuselargebcelllymphomainvolvingtheurinarybladderwithurinarycytologymimickingcarcinomasacasereport
AT shanguangliang primaryuterinediffuselargebcelllymphomainvolvingtheurinarybladderwithurinarycytologymimickingcarcinomasacasereport
AT yasuoishida primaryuterinediffuselargebcelllymphomainvolvingtheurinarybladderwithurinarycytologymimickingcarcinomasacasereport