scholarly journals Primary Pulmonary B-Cell Lymphoma Diagnosed by .KAPPA.-.LAMBDA. Imaging of Broncho-Alveolar Lavage Fluid Lymphocytes.

1993 ◽  
Vol 32 (6) ◽  
pp. 480-483 ◽  
Author(s):  
Yoshio NEHASHI ◽  
Masaru NAKANO ◽  
Kenta UTSUMI ◽  
Yuichi ICHINOSE ◽  
Keisuke TOYAMA
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Takashi Kido ◽  
Hiroshi Ishimoto ◽  
Hiroshi Ishii ◽  
Kanako Hara ◽  
Mutsumi Ozasa ◽  
...  

AbstractDiagnosis of pulmonary lymphoma using small tissue samples is difficult and often requires surgical procedures; thus, a less invasive sampling method is desirable. We previously showed that pulmonary mucosa-associated lymphoid tissue (MALT) lymphoma can be diagnosed by detecting MALT lymphoma translocation gene 1 (MALT1) translocations in bronchoalveolar lavage fluid (BALF) cells. Analysis of B-cell clonality based on immunoglobulin heavy chain (IGH) gene rearrangements was also reportedly useful for diagnosing pulmonary lymphoma. The aim of this prospective multicenter study was to evaluate the yet unknown diagnostic potential of combined detection of MALT1 translocations and clonality using BALF. We analyzed B- and T-cell clonality based on IGH and T-cell receptor (TCR) rearrangements together with MALT1 translocations using BALF of patients with clinically suspected pulmonary lymphomas. In total, 39 patients were evaluated and categorized into three groups: B-cell lymphoma, lymphoproliferative disorders, and other diseases. IGH rearrangement detection for B-cell lymphoma diagnosis exhibited sensitivity and specificity of 88.9% and 90.0%, respectively. TCR rearrangements were not observed in patients with B-cell lymphomas. The presence of IGH rearrangements together with the absence of TCR rearrangements indicated 96.0% specificity for the diagnosis of B-cell lymphoma. The sensitivity and specificity of MALT1 translocations for diagnosing MALT lymphoma were 28.6% and 100%, respectively. The combined detection of lymphocyte clonality and MALT1 translocations using BALF is suitable for screening and diagnosis of B-cell lymphomas. Analysis of specific genes such as MALT1 should improve the precision of B-cell lymphoma diagnosis.


2015 ◽  
Vol 21 ◽  
pp. 153-154
Author(s):  
Abhijana Karunakaran ◽  
Kadapalakere Reddy ◽  
Anshu Alok ◽  
Manav Batra ◽  
Ajay Chaudhuri ◽  
...  
Keyword(s):  
B Cell ◽  

Praxis ◽  
2016 ◽  
Vol 105 (1) ◽  
pp. 47-52 ◽  
Author(s):  
Andreas Lohri

Zusammenfassung. Maligne Lymphome unterteilen sich zwar in über 60 Entitäten, das grosszellige B-Zell-Lymphom, das follikuläre Lymphom, der Hodgkin und das Mantelzell-Lymphom machen aber mehr als die Hälfte aller Lymphome aus. Im revidierten Ann Arbor staging system gelten die Suffixe «A» und «B» nur noch für den Hodgkin. «E» erscheint nur noch bei Stadien I und II. Eine Knochenmarksuntersuchung wird beim Hodgkin nicht mehr verlangt, beim DLBCL (Diffuse large B cell lymphoma) nur, falls das PET keinen Knochenmark-Befall zeigt. Der PET-Untersuchung, speziell dem Interim-PET, kommt eine entscheidende Bedeutung zu. PET-gesteuerte Therapien führen zu weniger Toxizität. Gezielt wirkende Medikamente mit eindrücklicher Wirksamkeit wurden neu zugelassen. Deren Kosten sind hoch. Eine strahlen- und chemotherapiefreie Behandlung maligner Lymphome wird in Zukunft möglich sein.


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