COMPARATIVE EVALUATION OF BONE MARROW ASPIRATE WITH TREPHINE BIOPSY IN HEMATOLOGICAL DISORDERS AND DETERMINATION OF OPTIMUM TREPHINE LENGTH IN LYMPHOMA INFILTRATION

Main Article Content

Surbhi Goyal
Usha Rani Singh
Usha Rusia

Keywords

leukemia, Bone marrow aspirate, trephine biopsy

Abstract

Introduction- Bone marrow examination is an indispensable diagnostic tool to evaluate neoplastic and non neoplastic hematological diseases.

Aims- To compare bone marrow aspirate with trephine biopsy in hematological disorders. To determine the optimum trephine preprocessing length in lymphoma infiltration.

Methods – Diagnostic comparison was done between simultaneous bone marrow aspirates and trephine biopsies in 449 patients. Biopsies were fixed in formalin, decalcified in 5.5% EDTA and routinely processed. Concordance rates and validity parameters for aspirate were calculated. Three deeper sections of trephine biopsy, cut at 0.1–0.2 mm intervals, were assessed for lymphoma involvement. Proportion of biopsies showing marrow infiltration by lymphoma cells was plotted against trephine length and correlation was assessed.

Results- Aspirate had a high sensitivity for acute leukemia (89.4%) and multiple myeloma (88.5%), moderate for NHL (67.6%) and nonhematopoietic metastases (58.3%) and low for aplastic anemia (38.5%) and Hodgkin lymphoma (5%). Aspirate has no role in granulomatous myelitis and myelofibrosis. Lymphoma positivity increased with trephine length, with maximum positivity (68.9%) seen in 17-20 mm group and no further gain beyond 20 mm. (lymphoma positivity ?16mm=40.3% and ?17mm=66.1%, p=0.0011).

Conclusion- Though aspirate has a high specificity, sensitivity depends upon the type of disease. Apart from few conditions, in which aspirate alone is sufficient, biopsy is mandatory in most. Preprocessing trephine length of 17-20 mm examined at multiple deeper levels was found optimal for assessing lymphoma positivity.

Downloads

Download data is not yet available.


Abstract 1501
PDF Downloads 767
HTML Downloads 51572

Similar Articles

You may also start an advanced similarity search for this article.