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  Indian J Med Microbiol
 

Figure 1: A case of neuroblastoma with bone marrow infiltration (a) trephine imprint showing atypical round cells (×400) (b-d) Bone marrow biopsy displaying paratrabecular, interstitial and diffuse pattern of infiltration by round cells, respectively (×100) (e) immunohistochemistry with CD56 showing cytoplasmic and membranous positivity (×100), (f and g) the round cells showing positivity for vimentin and neuron-specific enolase, respectively (×100)

Figure 1: A case of neuroblastoma with bone marrow infiltration (a) trephine imprint showing atypical round cells (×400) (b-d) Bone marrow biopsy displaying paratrabecular, interstitial and diffuse pattern of infiltration by round cells, respectively (×100) (e) immunohistochemistry with CD56 showing cytoplasmic and membranous positivity (×100), (f and g) the round cells showing positivity for vimentin and neuron-specific enolase, respectively (×100)