Large hub airports are those that process at least one percent of revenue passenger boardings annually, whether or not in scheduled service. The table below lists the airports in the United States that have been designated as large hubs. The table is sorted by Airport Code. USA Large Hub Airports with 2004 Passenger Boardings, Sorted by Airport Code. Code.
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).
Skin Cancer Information. En EspaÃ±ol. What Is Skin Cancer? Skin cancer is the uncontrolled growth of abnormal skin cells. It occurs when unrepaired DNA damage to skin cells (most often caused by ultraviolet radiation from sunshine or tanning beds) triggers mutations, or genetic defects, that lead the skin cells to multiply rapidly and form malignant tumors.