Journals / Turkish Journal of Hematology / 2008 / Cilt: 25 - Sayı: 3

Küçük yaşta olumlu prognoz ile seyreden de-novo CD5 + B- prolenfositik lösemi (PLL)

De-novo CD5 + B- prolymphocytic leukemia (PLL) presenting at younger age with favourable outcome

Pages
149–151
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Our case illustrates a de-novo B-PLL with aberrant CD5 positivity who had a short duration of illness, younger age at presentation and favourable treatment outcome.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:B-cell prolymphocytic leukemia (B-PLL) comprises 1% of chronic lymphocytic leukemias.
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Key Findings & Data:CD5 positivity is seen in 1/3rd of cases which generally arise from pre existing CLL.
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Conclusion & Impact:Our case illustrates a de-novo B-PLL with aberrant CD5 positivity who had a short duration of illness, younger age at presentation and favourable treatment outcome.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Antijenler · CD22 · Lösemi

Abstract

B-cell prolymphocytic leukemia (B-PLL) comprises 1% of chronic lymphocytic leukemias. CD5 positivity is seen in 1/3rd of cases which generally arise from pre existing CLL. They have longer median survival compared with de novo B-PLL which are commonly CD5 negative and are more aggressive with an older age of presentation. Herewith, we describe a 48-year-old male of de-novo CD5+ B-PLL presenting with minimal lymphadenopathy and massive splenomegaly with 90% atypical lymphoid cells in the peripheral smear and bone marrow. Immunophenotyping was strongly positive for CD5, CD45, CD19, CD22, FMC-7, S-Ig and CD38, moderately positive for CD 11c, weakly positive for CD23 and negative for CD-103 and ZAP 70. The patient responded well to fludarabine and cyclophosphamide and had an uneventful hospital course. Our case illustrates a de-novo B-PLL with aberrant CD5 positivity who had a short duration of illness, younger age at presentation and favourable treatment outcome.

Özet

B-hücreli prolenfositik lösemi (B-PLL), kronik lenfositik lösemilerin %1’ini oluşturur. CD5 pozitifliği vakaların 1/3’ünde görünmekte olup genellikle önceden var olan CLL’den ileri gelmektedir. Genellikle CD5 negatif olan ve ileri yaşta göründüğünde daha agresif olan de novo B-PLL’e nazaran daha uzun ortalama sağkalımları bulunmaktadır. Burada, de novo CD5+B-PLL hastası olan, minimal lenfadenopati ve masif splenomegaliye sahip, periferik yaymasında ve kemik iliğinde %90 atipik lenfoid hücre olan 48 yaşındaki bir erkeği sunuyoruz. İmmünofenotipleme,CD5, CD45, CD19, CD22, FMC-7, S-Ig ve CD38 için güçlü derecede, CD 11c için orta derecede ve CD23 için zayıf derecede pozitifti ve CD-103 ve ZAP 70 için de negatifti. Hasta fludarabin ve siklofosfamide iyi yanıt vermişti ve hastanede kaldığı sürede herhangi bir olay ortaya çıkmamıştı. Aberan CD5 pozitifliği olan de novo B-PLL olgumuz, kısa hastalık süresi, genç yaşta başvuru ve tedaviye iyi cevap göstermektedir.

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Cite This Article

KAR, R., KUMAR, R., TYAGI, S. (2008). Küçük yaşta olumlu prognoz ile seyreden de-novo CD5 + B- prolenfositik lösemi (PLL). Turkish Journal of Hematology, Cilt: 25 - Sayı: 3, 149–151. https://ajindex.com/articles/413198

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