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.
Key points about testicular torsion in children. Testicular torsion is a painful twisting of a boyâs testicles and spermatic cord. Torsion can happen to one or both testicles. Torsion causes blood to not flow to the testicles. This can damage them.