<Li> Costochondritis: Inflammation of cartilage in the ribs, causing chest pain . </Li> <Li> Spinal disc herniation: Asymmetrical compression of an intervertebral disc ruptures the sac - like disc, causing a herniation of its soft content . The hernia often compresses the adjacent nerves and causes back pain . </Li> <Li> Relapsing polychondritis: a destruction, probably autoimmune, of cartilage, especially of the nose and ears, causing disfiguration . Death occurs by suffocation as the larynx loses its rigidity and collapses . </Li> <P> Tumors made up of cartilage tissue, either benign or malignant, can occur . They usually appear in bone, rarely in pre-existing cartilage . The benign tumors are called chondroma, the malignant ones chondrosarcoma . Tumors arising from other tissues may also produce a cartilage - like matrix, the best known being pleomorphic adenoma of the salivary glands . </P>

Which type of cartilage has the least chondrocytes