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Hairy cell #leukemia case in a 34-year old male patient 🔬 PB smear (figures): mononuclear large lymphocytes with abundant cytoplasm and circumferential hair-like projections 💡 FC: CD19/CD20+++, CD305+, CD11c+, CD103+ 🧬 Genetics: BRAF mutation V600E #hemepath #cytopath
Lymphoplasmacytic lymphoma (Waldenström’s macroglobulinemia): 🔬 Lymphoplasmacytoid cells 💉 Serum IgM monoclonal 🦴 BM infiltration (paratrabecular) 🦠 Pan-B, CD25+/CD22low 🧬 Mutation: MYD88 L265P, CXCR4 Presented at @geltamo 2019