Multiple Myeloma

One Bad Manager Takes Over the Factory

Imagine a toy factory where thousands of workers (plasma cells) each make one type of toy, and managers (osteoblasts and osteoclasts) keep the factory building in perfect repair. One manager mutates and clones himself a million times, flooding the factory floor with copies that all make the same toy (M-protein) endlessly. These clones send signals telling the wrecking crew (osteoclasts) to smash the walls and telling the repair crew (osteoblasts) to stop fixing them—so the building crumbles and the rubble (calcium) pours into the streets (blood). Meanwhile, the cloned managers crowd out the normal workers, so the factory stops making everything else it needs (red blood cells, white blood cells, platelets). The toxic rubble clogs the city's drains (kidneys), and the city can't defend itself anymore because all the guards (immune cells) are gone or suppressed.