Journals / Turkish Journal of Hematology / 2014 / Cilt: 31 - Sayı: 4

Intravascular Large B-Cell Lymphoma Diagnosed on Prostate Biopsy: A Case Report

Prostat Biopsisinde Tanı Konulan İntravasküler Büyük B Hücreli Lenfoma: Olgu Sunumu

Pages
403–407
DOI
—
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AI Summary & Key Takeaways

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

Further improvements in the understanding of the pathogenesis and biology of this rare type of lymphoma are mandatory.

📌 3 Key Takeaways

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Objective & Hypothesis:Intravascular large B-cell lymphoma (IVLBCL) is a very rare type of non-Hodgkin lymphoma, usually affecting elderlypatients and characterized by selective infiltration of neoplastic cells within blood vessels' lumina.
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Key Findings & Data:We report a patient of 65 years old, having mostly neurological complaints but diagnosed with IVLBCL upon histopathological examination of transurethral prostate resection material, whichrevealed large neoplastic cell infiltration totally limited within the lumens of small vessels.
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Conclusion & Impact:Further improvements in the understanding of the pathogenesis and biology of this rare type of lymphoma are mandatory.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Intravascular large B-cell lymphoma (IVLBCL) is a very rare type of non-Hodgkin lymphoma, usually affecting elderlypatients and characterized by selective infiltration of neoplastic cells within blood vessels' lumina. IVLBCL diagnosedwith prostatic involvement is extremely rare. We report a patient of 65 years old, having mostly neurological complaints but diagnosed with IVLBCL upon histopathological examination of transurethral prostate resection material, whichrevealed large neoplastic cell infiltration totally limited within the lumens of small vessels. By immunohistochemistry,neoplastic cell infiltration was positive with MUM1, bcl-6, and bcl-2 and negative with ALK1, CD10, and CD30, with a high Ki-67 proliferation index. CD34 and CD31 staining showed expression in endothelial cells, highlighting theintravascular nature of neoplastic infiltrate. The patient unfortunately refused to receive treatment and died of thedisease 8 months after the diagnosis. IVLBCL, though very rare, should be considered in differential diagnosis of all organ biopsies with intravascular infiltration. Further improvements in the understanding of the pathogenesis and biology of this rare type of lymphoma are mandatory.

Özet

İntravasküler büyük B hücreli lenfoma (İVBBHL), non-Hodgkin lenfomaların nadir bir tipidir, genellikle ileri yaşta görülür, ve neoplastik hücrelerin damar lümeni içerisinde seçici infiltrasyonu ile karakterlidir. Prostat tutulumu ile tanı konan İVBBHL olguları ise çok nadirdir. Altmış beş yaşında, daha çok nörolojik şikayetleri olan, ancak transüretral prostat rezeksiyon materyalinin histopatolojik incelemesinde, tamamen küçük damar lümenleri içerisinde sınırlı neoplastik büyük hücre infiltrasyonunun görülmesi ile tanı konan bir olguyu sunuyoruz. Neoplastik hücre infiltrasyonu immunhistokimyasal incelemede MUM1, bcl-6 ve bcl-2 ile pozitif, ALK1, CD10, CD30 ile negatif saptandı, Ki67 proliferasyon indeksi yüksekti. CD34 ve CD31 endotelial hücrelerde pozitif olup, neoplastik infiltrasyonun damar içi yerleşimini belirgin olarak ortaya koydu. Hasta, ne yazık ki tedavi almayı kabul etmedi ve sekiz ay içerisinde hastalık nedeniyle kaybedildi. IVLBCL, az görülmekle birlikte, intravasküler infiltrasyon içeren tüm organ biopsilerinde ayırıcı tanı içerisinde yer almalıdır. Bu nadir lenfoma tipinin patogenez ve biyolojisinin aydınlatılmasına ihtiyaç duyulmaktadır.

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Cite This Article

ÖZSAN, N., KUMBARACI, B. S., YILMAZ, A. F., ŞİMŞİR, A., DÖNMEZ, A. (2014). Intravascular Large B-Cell Lymphoma Diagnosed on Prostate Biopsy: A Case Report. Turkish Journal of Hematology, Cilt: 31 - Sayı: 4, 403–407. https://ajindex.com/articles/412835

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