The bone marrow biopsy is the gold standard test for the diagnosis of<unk>  anemia. A hematopathologist will review the bone marrow biopsy findings, and confirmatory results for<unk>  anemia include hypoplasia with <20% cellularity, normal maturation of all cell lines, presence of fat cells and stroma in bone marrow space. Residual hematopoietic cells are morphologically normal. Hematopoiesis is not megaloblastic.
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