Abstract
Background: The bone marrow examination is an essential investigation for the diagnosis and management of many disorders of the blood and bone marrow. The aspirate and trephine biopsy specimens are complementary and when both are obtained, they provide a comprehensive evaluation of the bone marrow. The present study was conducted to compare the role of trephine biopsy with bone marrow aspiration for effectively diagnosing wide spectrum of hematological diseases. Few studies have compared the relative value of aspirate with trephine biopsy.Materials & method: This is a three year observational study undertaken in Dept. of Pathology, MKCG MCH, Berhampur,Odisha. A total of 370 cases presented with haematological disorders, of which only 126 patients had undergone trephine biopsy and correlation was done with aspiration in these patients.Results: Of a total 370 patients, both BMA & BMB were performed on 126 patients (71 male & 55 female). Commonly encountered diseases were AML (17%), IDA (11%), ALL (9%), others (9%), CML (8%), MA (6%) accounted for maximum no. of cases. Others group included TB, NPD, Metastatic Diseases such as SRBCT, NHL& Neuroblastoma. Patients from 2 months to 80 years old were encountered in the study. BMB was diagnostic in 100% cases. In comparison BMA, a positive diagnosis was made in 80% (101) cases, suggestive in 6.3%(8) cases &negative in 13.4% (17) cases. BMB was superior to BMA in diagnosis of MF (2%), ALL (4%), Others (9%) where BMA aspirations yielded a dry tap / diluted marrow. In the present study BMB was advantageous in diagnosis & staging in 19%(25) cases. Additional advantages of BMB noted in the present study were assessment of cellularity, detection of ALIP, assessment of fibrosis, nodular/diffuse/focal patterns of involvement, metastatic deposits, and granuloma could be identified in BMB.Conclusion: The decision whether to perform a BMA alone or in combination with BMB rests on the diagnostic possibilities. In IDA, ITP & Acute leukaemia’s where cellular morphology is desired aspiration is best. BMB is superior when assessment of cellularity, detection of ALIP, assessment of fibrosis, nodular/diffuse/focal patterns of involvement, metastatic deposits, granuloma, with the use of IHC on BMB samples the accuracy in diagnosis of Lymphoma, AML/ALL, MM & Metastatic Diseases can be made. Thus BMA & BMB should always go hand in hand.DOI:10.21276/APALM.1627
Highlights
Bone marrow is involved in variety of haematological and non-haematological disorders
Additional advantages of BMB noted in the present study were assessment of cellularity, detection of Abnormal localization of immature precursors, assessment of fibrosis, nodular/diffuse/focal patterns of involvement, metastatic deposits, and granuloma could be identified in BMB
The present study showed that BMA and BMB are easy, rapid, cost-effective and more or less are of equal value in various hematological and non-hematological disorders of bone marrow
Summary
Bone marrow is involved in variety of haematological and non-haematological disorders. Complete haematological evaluation of cases where bone marrow examination was indicated includes BMA smear and trephine BMB as they are complementary to each other providing complete cytomorphology, differential count of cells, marrow architecture with distribution of tumor cells and further IHC or flow cytometric analysis can be done. Few studies have compared the relative value of aspirate with trephine biopsy
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