CT-guided biopsy reveal diffuse large B-cell lymphoma.
Patchy dense tumour infiltrates with severe crushing artefact of the marrow. Morphological details are lost. The diagnosis of B cell lymphoma is based on strong CD20 and CD45 staining of a dense crushed lymphoid infiltrate.
Thanks to Dr. Lois Richard. Consultant Hematopathology (Sheikh Khalifa Medical City, Abu Dhabi, UAE)