Double‐hit multiple myeloma with atypical “faggot” cells

A 60-year-old woman was diagnosed with kappa light chain multiple myeloma following the investigation of proteinuria and deteriorating general health. There was no cytopenia but rare dystrophic plasma cells (2%) with Auer rod-like inclusions in faggots were present in the blood film (images, May-Grünwald-Giemsa, ×100 objective, left). The same morphology was found in a bone marrow aspirate at diagnosis, displaying 38% of myeloma cells (right)....