A lentigo is a pigmented flat or slightly raised lesion with a clearly defined edge. Unlike an ephelis (freckle), it does not fade in the winter months. There are several kinds of lentigo. The name lentigo originally referred to its appearance resembling a small lentil. The plural of lentigo is lentigines, although “ lentigos ” is also in ...

A solar lentigo is a flat, well-circumscribed patch. It can be round, oval or irregular in shape. It can be round, oval or irregular in shape. Colour varies from skin-coloured, tan to dark brown or black, and size varies from a few millimetres to several centimetres in diameter.

Aug 10, 2020 · Lentigo maligna is a precursor to lentigo maligna melanoma, a potentially serious form of skin cancer. Lentigo maligna is also known as Hutchinson melanotic freckle. Lentigo maligna is an early form of melanoma in which the malignant cells are confined to the tissue of origin, the epidermis, hence it is often reported as ‘in situ’ melanoma ...

Brown spots and freckles on sun-exposed skin are ephelides (the plural of ephelis) and lentigines (the plural of lentigo). The difference between an ephelis and a lentigo is that an ephelis fades during the winter months while a lentigo persists in the absence of ultraviolet (UV) stimulation.

Histologically, the hallmark of the lentigo (plural lentigines) is an increase in basal melanin. In most forms of lentigo, there is a mildly increased number of melanocytes in the basal layer of the epidermis and variable elongation of the rete ridges. Lentigo simplex. Lentigo simplex is a common lesion and usually appears in

Lentigo simplex is the most common form of lentigo. A single lesion or multiple lesions (lentigines) may be present at birth or more commonly first develop in early childhood. Lentigo simplex is not induced by sun exposure, and it is not associated with any medical diseases or conditions. It is also referred to as simple lentigo and juvenile ...

Lentigo, lentigines images. Authoritative facts about the skin from DermNet New Zealand. Lentigo ...

What is an atypical solar lentigo? An atypical solar lentigo is a solar lentigo with unusual characteristics. The term may be used when a clinician is unsure of whether a flat brown mark (a lentigo) is a benign solar lentigo or melanoma in situ (an …

Lentigo maligna is a type of melanoma in situ and is a precursor to lentigo maligna melanoma, a potentially serious form of skin cancer. Lentigo maligna is also known as Hutchinson melanotic freckle. Lentigo maligna occurs in sun-damaged skin so is generally found on the bald scalp, face or neck, particularly the nose and cheek of older adults.

Lentiginous melanoma has been more common in males than females in most reports. The majority of patients with lentigo maligna are older than 40 years, and the peak age of diagnosis is be between 60 and 80 years. Unlike superficial spreading melanoma, lentigo maligna is not related to the number of melanocytic naevi or atypical naevi.