COMPARATIVE STUDY OF BONE MARROW ASPIRATION AND BONE MARROW TREPHINE BIOPSY IN HAEMATOLOGICAL AND NON-HAEMATOLOGICAL MALIGNANCIES

Abstract INTRODUCTION: Bone marrow examination is a useful investigative tool for the diagnosis of many hematological and nonhematological disorders. Bone marrow aspiration (BMA) provides information about the numerical and cytological features of marrow cells, whereas bone marrow trephine biopsies (BMB) provide excellent appreciation of spatial relationships between cells and of overall bone marrow structure. We conducted this study with the objective of comparing the accuracy of BMA with BMB in the diagnosis of various hematological disorders. MATERIALS AND METHODS: Both BMA and BMB were performed on a total of 130 cases and a comparative evaluation was performed in 100 cases to see the complementary role of both the procedures. However, 30 cases were excluded due to inadequate BMA, BMB, or both. Immunohistochemistry (IHC) was employed whenever required. RESULTS: In our study of 100 cases, 87% of cases were confirmed on bone marrow biopsy and in remaining 13% of cases final diagnosis was achieved with the help of other ancillary investigations. These cases were excluded for calculation of concordance rate between BMA and BMB. The concordance and disconcordance rate between BMA and BMB was 72.4% and 27.6%, respectively. CONCLUSION: BMA cytology and trephine biopsy histopathology complement each other and the superiority of one method over the other depended on the underlying disorder. Furthermore, application of ancillary techniques such as flow cytometery and IHC proved to be an additional advantage in further typing of various diseases.

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Role of Bone Marrow Trephine Biopsies in the Diagnosis of Hematological and Non-Hematological Disorders

Nepalese Medical Journal ◽

10.3126/nmj.v3i2.31042 ◽

2020 ◽

Vol 3 (2) ◽

pp. 347-351

Author(s):

Kricha Pande ◽

Arvind Kumar Sinha ◽

Anju Pradhan ◽

Suman Rijal ◽

Nisha Keshari Bhatta

Keyword(s):

Bone Marrow ◽

Bone Marrow Aspiration ◽

Bone Marrow Examination ◽

Cross Sectional Study ◽

Trephine Biopsy ◽

Cross Sectional ◽

Hematological Disorders ◽

Bone Marrow Trephine ◽

Bone Marrow Trephine Biopsy ◽

Conclusive Diagnosis

Introduction: Bone marrow examination has become increasingly important for the diagnosis and treatment of hematologic and other illnesses. Bone marrow aspirates along with their peripheral smears and bone marrow trephine biopsies are considered to be complementary.Materials and Methods: This hospital-based, cross-sectional study was carried out in the Department of Pathology for one year (March 2011 to March 2012) at BPKIHS, Dharan. Fortyeight adequate bone marrow aspirates along with peripheral blood smears and trephine biopsies were selected and examined. Bone marrow trephine biopsies performed simultaneously with aspirate were correlated with the other two fi ndings to arrive at a conclusive diagnosis.Results: Bone marrow aspiration and trephine biopsy were found as complementary tests in 51.8% of cases. Bone marrow trephine biopsy provided a conclusive diagnosis in 25.9% of cases where bone marrow aspiration was inconclusive. Bone marrow aspiration alone was diagnostic in 22.2% of cases. In 43.7% of cases both aspiration and trephine biopsy were unable to provide a specificdiagnosis. Bone marrow biopsy was the diagnostic investigation in cases like aplastic anemia, myelofi brosis, and hypoplastic marrow.Conclusions: This study concludes that bone marrow aspiration smear along with peripheral smear findings and marrow trephine biopsy is required to arrive at a conclusive result.

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