lentigo spots - Health Topics
Lentigo in cats is a common dermatological condition characterized by the presence of small, flat, brownish spots on the skin — particularly around the lips, nose, and eyelid margins. Unlike in humans ... Dear reader, while writing a description for Percy, I noticed the black spots on his nose and wondered what exactly they were.
Understanding the Context
It turns out that the spots are lentigo simplex and are comparable to ... What are brown spots and freckles? 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.
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Key Insights
The woman had solar lentigines, or “liver spots.” These common, benign lesions result from melanocyte hyperproliferation secondary to chronic sun damage. They most frequently arise in older, ... A lentigo is a clearly defined, pigmented macule that results from sun exposure. Unlike a freckle, it does not fade over time. Images below demonstrate the various possible forms.
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What is lentigo maligna? 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 simplex is a common lesion and usually appears in childhood. Key features include mild epidermal acanthosis, increased numbers of uniformly dispersed single melanocytes without atypia in the basal layer and variable basal hyperpigmentation (figures 1, 2). What is solar lentigo?
Solar lentigo is a harmless patch of darkened skin. It results from exposure to ultraviolet (UV) radiation, which causes local proliferation of melanocytes and accumulation of melanin within the skin cells (keratinocytes). Solar lentigos or lentigines are very common, especially in people over the age of 40 years.