text: <unk>  are protrusions of the cartilage of the intervertebral disc through the vertebral body endplate and into the adjacent vertebra.
option_0: Schmorl's nodes
option_1: Bouchard's nodes
option_2: Osler nodes
option_3: Heberden's node
option_4: Virchow's node
option_5: Osler's node
option_6: Fordyce's spot
option_7: Sister Mary Joseph nodule