A. Multiple myeloma is a malignant, clonal disorder of plasma cells that originates in the bone marrow. Itâs a relatively common disorder, accounting for 1% of all malignancies and 10% of all hematologic malignancies in adults.
torsion, n 1. , motion or state of torque in which one end of an anatomical component is twisted about its longitudinal axis as the opposite end is either immobile or moves in the opposite direction.
Testicular torsion. Torsion means twisting -- and for a testicle, that's not a good thing. When testicular torsion occurs, the twisting kinks -- like a garden hose -- and blocks the blood vessels to one testicle. Certain men have a developmental problem that makes them susceptible to testicular torsion.