Primary bone solitary B-cell lymphoblastic lymphoma aberrant expression Fli-1 and ERG: A case report

Primary non-Hodgkin bone lymphoma is a rare disease, and within this category, B-cell lymphoblastic lymphoma (B-LBL) is an even rare clinical entity that has only been reported in small case series or individual case reports. B-LBL can mimic Ewing’s sarcoma both clinically and histologically, leadin...

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Main Authors: Huan Chen, JiaSi Li, Yong Huang
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2025-01-01
Series:Indian Journal of Pathology and Microbiology
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Online Access:https://journals.lww.com/10.4103/ijpm.ijpm_619_23
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author Huan Chen
JiaSi Li
Yong Huang
author_facet Huan Chen
JiaSi Li
Yong Huang
author_sort Huan Chen
collection DOAJ
description Primary non-Hodgkin bone lymphoma is a rare disease, and within this category, B-cell lymphoblastic lymphoma (B-LBL) is an even rare clinical entity that has only been reported in small case series or individual case reports. B-LBL can mimic Ewing’s sarcoma both clinically and histologically, leading to misdiagnosis. We present a case of primary B-LBL of the bone in a 7-year-old girl. The tumor cells are uniform and small with a diffuse and infiltrative growth pattern similar to EWS. Immunohistochemical results are positive for CD99, Fli-1, ERG, TDT, PAX5, and CD79α, but negative for leukocyte common antigen, CD3, CD20, and NKX2.2. No other lesions are found on positron emission tomography/computed tomography imaging. Finally, primary solitary bone B-LBL of the right tibia was diagnosed.
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spelling doaj-art-0b52022a05ed4aceae565df4cfe9f8a42025-08-20T02:16:39ZengWolters Kluwer Medknow PublicationsIndian Journal of Pathology and Microbiology0377-49290974-51302025-01-0168121922110.4103/ijpm.ijpm_619_23Primary bone solitary B-cell lymphoblastic lymphoma aberrant expression Fli-1 and ERG: A case reportHuan ChenJiaSi LiYong HuangPrimary non-Hodgkin bone lymphoma is a rare disease, and within this category, B-cell lymphoblastic lymphoma (B-LBL) is an even rare clinical entity that has only been reported in small case series or individual case reports. B-LBL can mimic Ewing’s sarcoma both clinically and histologically, leading to misdiagnosis. We present a case of primary B-LBL of the bone in a 7-year-old girl. The tumor cells are uniform and small with a diffuse and infiltrative growth pattern similar to EWS. Immunohistochemical results are positive for CD99, Fli-1, ERG, TDT, PAX5, and CD79α, but negative for leukocyte common antigen, CD3, CD20, and NKX2.2. No other lesions are found on positron emission tomography/computed tomography imaging. Finally, primary solitary bone B-LBL of the right tibia was diagnosed.https://journals.lww.com/10.4103/ijpm.ijpm_619_23b-cells lymphoblastic lymphomaewing’s sarcomaergfli-1primary bone lymphoma
spellingShingle Huan Chen
JiaSi Li
Yong Huang
Primary bone solitary B-cell lymphoblastic lymphoma aberrant expression Fli-1 and ERG: A case report
Indian Journal of Pathology and Microbiology
b-cells lymphoblastic lymphoma
ewing’s sarcoma
erg
fli-1
primary bone lymphoma
title Primary bone solitary B-cell lymphoblastic lymphoma aberrant expression Fli-1 and ERG: A case report
title_full Primary bone solitary B-cell lymphoblastic lymphoma aberrant expression Fli-1 and ERG: A case report
title_fullStr Primary bone solitary B-cell lymphoblastic lymphoma aberrant expression Fli-1 and ERG: A case report
title_full_unstemmed Primary bone solitary B-cell lymphoblastic lymphoma aberrant expression Fli-1 and ERG: A case report
title_short Primary bone solitary B-cell lymphoblastic lymphoma aberrant expression Fli-1 and ERG: A case report
title_sort primary bone solitary b cell lymphoblastic lymphoma aberrant expression fli 1 and erg a case report
topic b-cells lymphoblastic lymphoma
ewing’s sarcoma
erg
fli-1
primary bone lymphoma
url https://journals.lww.com/10.4103/ijpm.ijpm_619_23
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AT jiasili primarybonesolitarybcelllymphoblasticlymphomaaberrantexpressionfli1andergacasereport
AT yonghuang primarybonesolitarybcelllymphoblasticlymphomaaberrantexpressionfli1andergacasereport