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.
The development of torsion is related to the development of an ovarian mass. During a woman's reproductive years, the usual growth of large corpus luteum cysts poses as a risk factor for rotation or torsion. Ovarian tumors also commonly cause the torsion due to their mass effect.