Diffuse Extranodal Histiocytic Sarcoma

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Presentation transcript:

Diffuse Extranodal Histiocytic Sarcoma Thomas D. Lee, M.D., Ph.D.1, Sophie X. Song, M.D., Ph.D.1, Jonathan Said, M.D.1, and Ronald Paquette, M.D.2 UCLA Medical Center 1Department of Pathology and Laboratory Medicine 2Department of Medicine Los Angeles, CA, United States

Bone Marrow Core H&E 40X Bone marrow core with erythroid hyperplasia and focal aggregates of neoplastic histiocytes

Bone Marrow Core H&E 100X Neoplastic histiocytes (indicated by arrow)

Bone Marrow Core H&E 100X Scattered hemophagocytic activity (indicated by arrow)

Bone Marrow Core CD68 4X

Bone Marrow Core CD68 40X

Bone Marrow Core CD68 100X

Bone Marrow Core CD163 40X

Bone Marrow Core Fascin 40X

Bone Marrow Core CD31 40X