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.
noun, Pathology. 1. a condition in which the neck is twisted and the head inclined to one side, caused by spasmodic contraction of the muscles of the neck. Also called wryneck. Origin of torticollis.