MALIGNANCY. Low back pain at night that is not relieved by lying down may be caused by a tumor in the cauda equina (the roots of the spinal nerves controlling sensation in and movement of the legs), or a cancer that has spread to the spine from the prostate, breasts, or lungs. The pain is caused by irritation of a nerve root. 2  Sciatica is an example of radicular pain. 3  Referred. 4  The pain is perceived in the lower back but is caused by inflammation elsewhereâoften in the kidneys or lower abdomen.
Skin Cancer Symptoms and Signs. BCC is the most common type of skin cancer and has a predilection for sun-exposed skin. Tumors may appear as a pearly or waxy bumps usually with visible blood vessels (nodular BCC), or as a flat scaly reddish patch (superficial BCC) with a brown border, or as a hard or scar-like lesion (sclerosing BCC).
Types of skin cancer. Basal cell carcinoma. This the most common type of skin cancer. About 8 out of 10 skin cancers are basal cell carcinomas (also called basal cell cancers). When seen under a microscope, the cells in these cancers look like cells in the lowest layer of the epidermis, called the basal cell layer.