PMC3420580_01
EMH within subdural hematoma. (a) Clusters of small round cells with hyperchromatic round nuclei and scant cytoplasm in a background of connective tissue with acute and chronic hemorrhage (H and E x400). (b) The small round cells show strong immunoreactivity for glycophorin A, a marker for erythroblastic line cells (glycophorin A x400).
CRIM.PATHOLOGY2011-718585.001.jpg
PMC3420580_01_CRIM.PATHOLOGY2011-718585.001.jpg
fig1
Remarkably, there were numerous microscopic nodules of hyperchromatic, small, round cells scattered diffusely in the hematoma (Figure 1(a)), which were positive for glycophorin (Figure 1(b)), an erythrocyte precursor marker.