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Updated: Feb 4, 2026
Preparation and Using Phantom Lesions to Practice Fine Needle Aspiration Biopsies
Published on: September 29, 2009
Bone Marrow Biopsy Needle Type Affects Core Biopsy Specimen Length and Quality and Aspirate Hemodilution
Jonathan R Brestoff1, Angus Toland1, Khalid Afaneh1
1Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO.
Objectives:
Bone marrow biopsies are essential for evaluating patients with suspected or confirmed hematopoietic disorders or malignancies, but little is known about how biopsy needle type affects biopsy length and/or quality. We sought to compare bone marrow biopsy quality in specimens obtained with two different needles.
Methods:
A retrospective analysis was performed on bone marrow specimens obtained with manual single-bevel (n = 114) or triple-bevel (n = 166) needles. The lengths of evaluable marrow, core quality, and aspirate quality were assessed by blinded hematopathologists.
Results:
The triple-bevel needle produced 1.33-mm shorter lengths of evaluable marrow than the single-bevel needle and was five times less likely to produce a specimen rated as "adequate" and 4.2 times more likely to produce crush artifact. The triple-bevel needle was also 2.4 times more likely to produce hemodilute aspirates.
Conclusions:
Bone marrow biopsy needle type affects the length of evaluable marrow and quality of core and aspirate specimens.
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