Pitfalls in obtaining and interpreting bone marrow aspirates: to err is human

Area of Science:

• Hematology
• Pathology
• Medical Diagnostics

Background:

• Bone marrow aspirates are critical for diagnosing various hematological conditions.
• The diagnostic accuracy of bone marrow aspirates is susceptible to numerous potential errors.

Purpose of the Study:

• To outline the common pitfalls encountered in bone marrow aspiration and interpretation.
• To emphasize the importance of proper technique and clinical correlation in reducing diagnostic errors.

Main Methods:

• Review of potential errors at each stage of the bone marrow aspirate process.
• Identification of specific scenarios prone to misinterpretation, such as megaloblastic marrows and pediatric samples.

Main Results:

• Errors can originate from inappropriate aspiration indications, technical issues (e.g., "blood tap," dilution), sampling variability, and misinterpretation of cellular morphology.
• Specific challenges include megaloblastic changes, increased hematogones in children, and reactive marrow conditions.

Conclusions:

• Awareness of potential pitfalls is essential for minimizing errors in bone marrow aspirate procedures.
• Integrating clinical context with careful aspirate assessment is key to improving diagnostic reliability.