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What is dark yellow or brown colored spots on the skin called?
senile lentigines Common term: "liver spots"
Multiple lentigines syndrome?
DefinitionMultiple lentigines syndrome is an inherited disorder identified by an increased number of lentigines (freckle-like spots).Alternative NamesLeopard syndromeCauses, incidence, and risk factorsMultiple lentigines syndrome is inherited as an autosomal dominant trait. People with this condition have large numbers of lentigines. Lentigines are skin markings that are somewhat darker than true freckles. They are present from birth. They are located mostly on the trunk and neck.Affected people also have wide-set eyes (hypertelorism), prominent ears, nerve deafness (partial), and cafe-au-lait spots (light brown birthmarks).In contrast, having scattered lentigines is normal and does not indicate a problem.Additional symptoms include mild pulmonic stenosis and changes in the ECG (electrocardiogram). People with this condition may have abnormal genitalia (cryptorchidism), hypogonadism, or delayed puberty.SymptomsA family history of multiple lentiginesAbsent or delayed pubertyCafe-au-lait spotsMultiple lentigines on neck and trunk (may be on any cutaneous surface)Pectus carinatum (abnormalities of the sternum or breastbone)Pectus excavatumProminent earsSlow growthUndescended testicles(cryptorchidism)Wide-set eyes (hypertelorism)Signs and testsA physical examination may show signs of mild pulmonic stenosis (obstruction of the pulmonic heart valve) and obstructive cardiomyopathy.Tests:ECG, may show abnormalitiesEndocrineevaluationHearing testTreatmentThe goal of treatment is to help with the correctable problems. The degree of hearing loss must be determined and hearing aids supplied where necessary. Hormone treatment may be necessary at the expected time of puberty to cause the normal changes to occur.Expectations (prognosis)Most patients adjust very well with proper attention to their specific problems.ComplicationsComplications vary and include:DeafnessDelayed pubertyHeart problemsInfertilityCalling your health care providerCall your health care provider if there are symptoms of this disorder.Call for an appointment with your health care provider if you have a family history of this disorder and plan to have children.PreventionGenetic counseling is recommended for people with a family history of multiple lentigines syndrome who want to have children.ReferencesGibbs NF, Makkar HS. Disorders of Hyperpigmentation and Melanocytes. In: Eichenfield LF, Frieden IJ, Esterly NB, eds. Textbook of Neonatal Dermatology. 2nd Ed. Philadelphia, Pa: Saunders Elsevier; 2001: p. 196.
What is the medical term meaning freckle?
Freckles are clusters of concentrated melanin which are most often visible on people with a fair complexion. A freckle is also called an "ephelis". Freckles do not have an increased number of melanin producing cells (melanocytes). This is in contrast to Lentigines and MolesIt is a macule: flat pigmented,circumscribed area less than 1 cm in diameterFreckles are clusters of concentrated melanin which are most often visible on people with a fair complexion. This is in contrast to Lentigines and Moles.Frecles are not Lentigenes
What is a lentigo?
A lentigo is a small, flat, pigmented spot on the skin. It is often referred to as a sun spot or liver spot and is typically benign. Lentigines are commonly found in areas of the skin that have been exposed to the sun.
Can dogs get freckles, and if so, what causes them to appear on their skin?
Yes, dogs can get freckles, which are also known as "lentigines." These dark spots on a dog's skin are caused by an increase in melanin production, similar to how freckles appear on humans.
Do dogs get freckles, and if so, what causes them to appear on their skin?
Yes, dogs can get freckles, which are also known as "lentigines." These freckles are caused by an increase in melanin production in certain areas of the dog's skin, similar to how freckles appear on humans.
What are the common causes of freckles on dogs and how can they be managed or treated?
Common causes of freckles on dogs include genetics, sun exposure, and age. Freckles, also known as solar lentigines, are usually harmless but should be monitored for changes in size or color. To manage or treat freckles on dogs, limit sun exposure, use pet-safe sunscreen, and consult a veterinarian for any concerns.
Are sunspots cancerous?
It is possible, normally they just are freckles on fair skin individuals, to be sure, you need to consult a doctor, skin cancer is very deadly. I had sun poisoning, and it is terrible. Years later I still need to be extremely careful.
Why do old people get age spots?
Well this is because when we get older our skin starts stretching when this happens we get spots on us that our body doesn't catch up with its self and they called the spots liver spots then you get theses when your skin starts drying out those spots are brown the skin starts loosening up we bump or self's it can turn your skin red purple and tear the skin.Our skin isn't very strong.
Why do some people have freckles and what causes them?
There are actually 2 types of freckles, Ephiledesand Lentigines. Ephilides is a genetic trait*, found in people with fair skin and red hair. Lentigines are formed after long years of exposure to the sun. Anybody who doesnt have freckles and are under the age of 19 either a) Doesn't go outside much or b) doesnt carry the genetic trait* *The genetic trait is the MC1-R gene, which is dominant
What is the medical term meaning age spots?
Question 15 pts I have read and agree to follow all of the safety rules set forth in this contract. I realize that I must obey these rules to ensure my own safety, and that of my fellow students to maintain a safe lab environment. I will also closely follow the oral and written instructions provided by the instructor. I am aware that any violation of this safety contract that results in unsafe conduct in the laboratory or misbehavior on my part may result in being removed from the laboratory, detention, receiving a failing grade, and/or dismissal from the course. Please type your name in the answer box to agree.
Why is sunlight harmful to the skin?
Sunlight can be both healthy and harmful to the skin; the critical element in the sun is ultraviolet light. Sun damage can result from excessive exposure to ultraviolet light when the wavelength different from the same spectrum helps kill bacteria and metabolize vitamin A. Effects of ultraviolet We shall concentrate on sun damage and the effects of excessive sun exposure. Excessive exposure may result in different circumstances. People with outdoor jobs, sports coaches and sailors are routinely exposed to large doses of ultraviolet light, day after day. Other individuals may be exposed to ultraviolet light due to heavy recreational reasons. Sports like skiing, sailing and hiking are some of the outdoor activities that make the skin of these people at risk. Sun Damage and Skin Diseases The cumulative effect of the sun can be severe and often results in chronic skin diseases and some cancers. Chronic sun ages the skin faster than the normal aging process. Aging skin subjected to damage sustained in the photo is marked by wrinkles and lines. It's rough, blotchy and could develop patches called lentigines. It could also give rise to cancerous lesions. The photo damage also causes the muscles of the skin to the flag and the loose skin is thick and leather. This is due to tissue damage, which is called solar elastosis. Sun damage and rosacea Excessive sun exposure is also harmful for people who have a skin condition called rosacea. This condition is characterized by sudden redness of the skin of the face and cheeks. It is a condition in which small blood vessels just below the surface of the skin dilate and cause the skin to look red and red. When the sun warms your face excessively, blood vessels dilate to regulate the heat. The result is that the classical rosacea flushing. Basal cell carcinoma is the most sensitive of skin cancers that respond to chronic sun exposure and sun damage. Another skin condition that is sensitive to sun damage is telangiectasia. This occurs because of how threads of the blood vessels in the face, especially the nose, due to certain skin conditions like rosacea. Treatment for damage Sun How to treat sun damage? There are several ways to protect your skin from photo damage. One way is to apply sunscreen or sun block on areas of your skin that are regularly exposed to sunlight, when you are outdoors. Diverts Sunscreen absorbs or scatters ultraviolet light and protects the skin. Other topical products such as creams and lotions could reverse the effects of sun damage. These include moisturizers, creams, lotions and gels. Those who seek to contain alpha hydroxy acids smooth w \ wrinkles and soften skin. Products containing vitamin C as its active ingredient are also known to help. A popular surgical treatment for skin with sun damage is the use of collagen or hyaluronic acid is injected into the epidermis. This restores some of the damaged collagen and brings back skin elasticity. What does the sun-damaged skin? The appearance of sun-damaged skin is generally recognized, and it is different from the trend observed with the normal chronological age. To see the very smooth, fine, pale wrinkling associated with aging in the sun-protected areas of the skin, such as the buttocks from the sun damage otherwise. Fine and coarse wrinkles are seen on sun skin. It is a rough skin and negligence or loosening of the damage peak, dark spots or patches of increased pigmentation spots are presented also. Sometimes these patches become irregular and produce what is called lentigines. Frequently observed in those areas is around the back of the neck a leathery texture and coarseness with deep wrinkles can be, the skin feels dry and flaky. Chronic sun exposure will in many produce a thickened layer in the upper dermis known as solar elastosis, which gives a yellowish chicken skin look. Some people develop blood vessels, called telangiectasias or broken blood vessels. If damage is severe, thinning of the skin and bruising may be seen particularly on the hands and forearms.
