Background: Intravascular large B-cell lymphoma is a rare, extranodal characterised by intravascular growth of malignant mature population, primarily affecting capillaries. Pre-mortem diagnosis can be challenging as patients often present with non-specific clinical findings including fever unknown origin, decreased general condition and neurological abnormalities. Radiological may or falsely ne...

which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. A 44-year-old woman presented with myalgia and fever. Initial laboratory results were: White blood cell (WBC) count, 7.8×10 9 /L; hemoglobin, 11.3 g/dL; platelet count, 42×10 9 /L; and lactate dehydrogenase, 619 IU/L. Peripheral blood cell morphology showed ...