Parathyroid hormone (PTH) is released by the parathyroid glands. The four tiny parathyroid glands are located in the neck, near or attached to the back side of the thyroid gland. PTH controls calcium, phosphorus, and vitamin D levels in the blood. It is important for regulating bone growth.
What is skin cancer? Skin cancer is a broad term that refers to any type of cancer that begins in the cells of the skin. These cancers usually develop in the top layer of skin, also known as the epidermis. The most common types of skin cancer are basal cell carcinoma, squamous cell carcinoma and melanoma. In addition, there are several types of skin cancers that occur much less frequently, including kaposi sarcoma, merkel cell carcinoma, cutaneous (skin) lymphoma, skin adnexal tumors and various types of sarcomas.
SKIN CANCER. Skin cancer is the growth of abnormal skin cells that are capable of invading and destroying other cells. It is the single most common type of cancer found in humans. The cause of most skin cancers is unknown, but overexposure to UV radiation (in sunlight) is a risky factor.Basel cell cancer is the most common for skin cancer, it covers 75% of skin cancer. It is the least cancerous however.n the form of skin cancer, basel cells in the epidermis are altered so they don't produce keratin. Also, it spreads invading dermis and subcutaneous layers. On sunexposed areas of the face, shiny dome-shaped lesions develop. The next common areas are the ears, backs of hands, and shoulders and arms.