Unusual cytochemical reactivity for toluidine blue in granular acute lymphoblastic leukemia: a report of two rare cases

Azurophilic granulation of blasts is a feature of acute myeloid leukemia (AML). Granular acute lymphoblastic leukemia (ALL) may mimic AML due to the presence of cytoplasmic granules in lymphoblasts, but cytochemistry and immunophenotyping are helpful in making the correct diagnosis. Toluidine blue (...

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Main Authors: Rishu Agarwal, Ritu Gupta, Sameer Bakhshi, Atul Sharma
Format: Article
Language:English
Published: Galenos Publishing House 2010-03-01
Series:Turkish Journal of Hematology
Subjects:
Online Access:http://www.journalagent.com/z4/download_fulltext.asp?pdir=tjh&plng=eng&un=TJH-53825
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author Rishu Agarwal
Ritu Gupta
Sameer Bakhshi
Atul Sharma
author_facet Rishu Agarwal
Ritu Gupta
Sameer Bakhshi
Atul Sharma
author_sort Rishu Agarwal
collection DOAJ
description Azurophilic granulation of blasts is a feature of acute myeloid leukemia (AML). Granular acute lymphoblastic leukemia (ALL) may mimic AML due to the presence of cytoplasmic granules in lymphoblasts, but cytochemistry and immunophenotyping are helpful in making the correct diagnosis. Toluidine blue (TB) is a metachromatic dye, which stains basophils and myeloid blasts that exhibit basophilic differentiation. Reactivity for TB has not been described in lymphoblasts. We herein report two cases of granular ALL with blasts exhibiting reactivity for TB that caused diagnostic dilemma. Immunophenotyping and cytogenetic studies were helpful in making a correct diagnosis. This report of two rare case highlight the reactivity of lymphoblasts with TB not hitherto described and the importance of a detailed diagnostic work-up in acute leukemia.
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spelling doaj.art-2acbbda9f9f7451392713b827bbf5b0b2023-02-15T16:11:45ZengGalenos Publishing HouseTurkish Journal of Hematology1300-77771308-52632010-03-0127014345Unusual cytochemical reactivity for toluidine blue in granular acute lymphoblastic leukemia: a report of two rare casesRishu AgarwalRitu GuptaSameer BakhshiAtul SharmaAzurophilic granulation of blasts is a feature of acute myeloid leukemia (AML). Granular acute lymphoblastic leukemia (ALL) may mimic AML due to the presence of cytoplasmic granules in lymphoblasts, but cytochemistry and immunophenotyping are helpful in making the correct diagnosis. Toluidine blue (TB) is a metachromatic dye, which stains basophils and myeloid blasts that exhibit basophilic differentiation. Reactivity for TB has not been described in lymphoblasts. We herein report two cases of granular ALL with blasts exhibiting reactivity for TB that caused diagnostic dilemma. Immunophenotyping and cytogenetic studies were helpful in making a correct diagnosis. This report of two rare case highlight the reactivity of lymphoblasts with TB not hitherto described and the importance of a detailed diagnostic work-up in acute leukemia.http://www.journalagent.com/z4/download_fulltext.asp?pdir=tjh&plng=eng&un=TJH-53825Granular ALLbasophilic leukemiatoluidine blueazurophilic granules
spellingShingle Rishu Agarwal
Ritu Gupta
Sameer Bakhshi
Atul Sharma
Unusual cytochemical reactivity for toluidine blue in granular acute lymphoblastic leukemia: a report of two rare cases
Turkish Journal of Hematology
Granular ALL
basophilic leukemia
toluidine blue
azurophilic granules
title Unusual cytochemical reactivity for toluidine blue in granular acute lymphoblastic leukemia: a report of two rare cases
title_full Unusual cytochemical reactivity for toluidine blue in granular acute lymphoblastic leukemia: a report of two rare cases
title_fullStr Unusual cytochemical reactivity for toluidine blue in granular acute lymphoblastic leukemia: a report of two rare cases
title_full_unstemmed Unusual cytochemical reactivity for toluidine blue in granular acute lymphoblastic leukemia: a report of two rare cases
title_short Unusual cytochemical reactivity for toluidine blue in granular acute lymphoblastic leukemia: a report of two rare cases
title_sort unusual cytochemical reactivity for toluidine blue in granular acute lymphoblastic leukemia a report of two rare cases
topic Granular ALL
basophilic leukemia
toluidine blue
azurophilic granules
url http://www.journalagent.com/z4/download_fulltext.asp?pdir=tjh&plng=eng&un=TJH-53825
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AT ritugupta unusualcytochemicalreactivityfortoluidineblueingranularacutelymphoblasticleukemiaareportoftworarecases
AT sameerbakhshi unusualcytochemicalreactivityfortoluidineblueingranularacutelymphoblasticleukemiaareportoftworarecases
AT atulsharma unusualcytochemicalreactivityfortoluidineblueingranularacutelymphoblasticleukemiaareportoftworarecases