The island of Ireland is located in the north-west of Europe, between latitudes 51Â° and 56Â° N, and longitudes 11Â° and 5Â° W. It is separated from the neighbouring island of Great Britain by the Irish Sea and the North Channel, which has a width of 23 kilometres (14 mi) at its narrowest point.To the west is the northern Atlantic Ocean and to the south is the Celtic Sea, which lies between Ireland and Brittany, in France.orthern Ireland is a part of the United Kingdom with a local executive and assembly which exercise devolved powers. The executive is jointly headed by the first and deputy-first minister, with the ministries being allocated in proportion with each party's representation in the assembly. Its capital is Belfast.
Lentigo maligna (also known as Lentiginous melanoma on sun-damaged skin) is a melanoma in situ that consists of malignant cells but does not show invasive growth.Lentigo maligna is not the same as lentigo maligna melanoma, and should be discussed separately.It typically progresses very slowly and can remain in a non-invasive form for years.t is normally found in the elderly (peak incidence in the 9th decade), on skin areas with high levels of sun exposure like the face and forearms. Some authors do not consider lentigo maligna to be a melanoma.
Congenital nevi are more apt to become cancerous than moles that develop after birth, especially if they are more than eight inches in diameter. Lentigo maligna (melanotic freckle of Hutchinson), most common on the face and after the age of 50, first appears as a flat spot containing two or more shades of tan. It gradually becomes larger and darker. One in three of these moles develop into a form of skin cancer known as lentigo maligna melanoma. Causes and symptoms The cause of moles is unknown, although atypical moles seem to run in families and result from exposure to sunlight.