Abstract:
:The clinical relevance of flow cytometry (FC)-based bone marrow involvement (BMI) in B cell non-Hodgkin lymphoma (B-NHL) is not well established. We conducted a systematic review of MEDLINE regarding the use of FC to establish BMI in B-NHL to determine the prevalence of BMI by FC, to understand the interrelation between FC and bone marrow biopsy (BMB), and to explore the prognostic impact of BMI by FC. Relevant exclusion criteria included publication before 2010. Eleven publications (of 18 screened) were included, with 2803 patients involved. Relevant methodological details were often unreported. The prevalence of BMI by FC varied based on histological subtypes included. The median kappa agreement between BMB and FC was 0.68 and the type of discordance (FC+/BMB- vs. FC-/BMB+) was highly variable across studies. Only 4 studies (all in diffuse large B cell lymphoma) assessed the prognostic impact of BMI by FC. Two found a worse prognosis for patients with FC+/BMB- than those without BMI. To conclude, studies assessing BMI by FC are retrospective, of low methodological quality and with heterogeneous findings.
journal_name
Blood Revjournal_title
Blood reviewsauthors
Sorigue M,Cañamero E,Miljkovic MDdoi
10.1016/j.blre.2020.100778subject
Has Abstractpub_date
2020-11-08 00:00:00pages
100778eissn
0268-960Xissn
1532-1681pii
S0268-960X(20)30128-4pub_type
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