The lumbar vertebrae are the 5 largest and strongest of all vertebrae in the spine. These vertebrae comprise the lower back. They begin at the start of the lumbar curve (ie, the thoracolumbar junction) and extend to the sacrum.
1) Sarcoma [CHILDREN]: cancer of connective tissue or supportive tissues, inside of bones - Diagnosed during growth. 2) Carcinomas [ADULTS]: cancer of epithelial origin such as breasts, colon, pancreas, skin, lung which spreads to bone - Diagnosed peak growth periods.
1 This cancer infection of the skin is called erysitelas. Hence, such metastasis to the skin is also called carcinoma erysitelatoides.  Breast cancer metastasis to the skin can also appear as reddish skin with small red dots. This pattern of metastasis is often called telangiectatic metastatic carcinoma.