While metastasis of common sunlight-induced squamous cell carcinoma is unusual, lesions more likely to metastasize are lesions of the lip or ear, lesions that recur after previous therapy, lesions at the site of a burn and those that are more deeply invasive.
The Great Dark Spot was one of a series of dark spots on Neptune similar in appearance to Jupiter's Great Red Spot. GDS-89 was the first Great Dark Spot on Neptune to be observed in 1989 by NASA's Voyager 2 spaceprobe. Like Jupiter's spot, Great Dark Spots are anticyclonic storms. However, their interiors are relatively cloud-free, and unlike Jupiter's spot, which has lasted for hundreds of years, their lifetimes appear to be shorter, forming and dissipating once every few years or so. Based on
Age spots â also called liver spots and solar lentigines â are small dark areas on your skin. They vary in size and usually appear on the face, hands, shoulders and arms â areas most exposed to the sun. Age spots are very common in adults older than 50. But younger people can get them too, especially if they spend a lot of time in the sun.