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Doctor insights on: Tests Detect Various Skin Pigmentation

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What tests can be done to detect various skin pigmentation disorders?

What tests can be done to detect various skin pigmentation disorders?

Skin biopsy: Many pigmentary disorders are diagmosed clinically, by the way they look, and associated symptoms. If there is doubt, a skin biopsy can be helpful. ...Read more

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Skin Pigmentation (Definition)

Skin color comes from four different pigments present in our skin: 1. Melanin - tans or browns in our skin 2. Carotenes - yellows and oranges 3. Oxygenated hemoglobin (in the arteries) - red 4. Deoxygenated hemoglobin (in the veins) - blue skin color is the ...Read more


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Can a skin biopsy detect other cancers?

Can a skin biopsy detect other cancers?

Skin cancer : A skin biopsy is used to detect a variety if cancerous and non cancerous growths. ...Read more

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2 different allergist, 2 different blood tests for foods, and different results. How does this happen? Skin testing also different. Believe skin test?

2 different allergist, 2 different blood tests for foods, and different results. How does this happen? Skin testing also different. Believe skin test?

Many reasons: Prick skin tests may -> false-negative reactions. Multiprong devices variable results. Food allergen extracts are not standardized. The larger ST size and the higher the specific IgE->the more likely the reaction. Just 2 days ago, I saw a patient with anaphylaxis to wheat - her ST x2 were (-) but developed generalized itching & 3+ ST with wheat flour. A challenge test-> gold standard. ...Read more

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Are skin biopsies performed on conditions other than suspicious moles?

Are skin biopsies performed on conditions other than suspicious moles?

Skin biopsy: Skin biopsies are performed to determine the histopathology of the skin condition. This tells the type of rash a person has. Also there are many other types of growths besides moles such as precancerous actinic keratosis, and other skin cancers. Skin biopsies are essential for accurate diagnosis. ...Read more

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Are skin scrapings around the face and hair line scalp just as helpful as biopsy of skin in diagnosis of dermatology types DLE SLE etc ?

No: Skin scrapings are not a substitute for biopsy. However a biopsy may not be needed, depending on other findings, clinical history and blood test results. ...Read more

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Are negative pricks on skin testing for food usually accurate?

Are negative pricks on skin testing for food usually accurate?

Yes: Yes, this is a good way to assess if one has significant food allergies, as well as air- born allergies. ...Read more

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What are possible reasons for poor and uneven skin tone? I.e. darkly coloured skin (not due to exposure to the sun), blood vessels are faintly visible

Melasma: Just noormal aging can cause our skin to be unevenly colored. The melanocytes that are deep in our skin, make their way to the top of our skin normally at the same speed, but as we begin to age, the pigment is carried by the cells at different times. There are chemical peels and other modalities that can help with these issues. :) ...Read more

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Are skin prick tests accurate for food allergies?

Are skin prick tests accurate for food allergies?

Yes, helpful: I agree. Skin prick testing to evaluate for food allergies can be very helpful, and can help direct dietary restriction. It is always used in clinical context to support an adverse reaction to a food. The size of the reaction will indicate the likelihood of an adverse reaction and not if you will have anaphylaxis. ...Read more

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What are skin allergy tests for hair dyes?

What are skin allergy tests for hair dyes?

Patch Test: To test for allergy to hair dye, a small patch containing the hair dye chemical is placed on the skin and held in place by tape for 48 to 72 hours. After removal, the doctor will look for a local reaction where the hair dye contacted the skin to diagnose allergy to the dye (phenylenediamine). ...Read more

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Dermatomysositis.Wat are the blood tests needed,EMG results wheldl,refused tisue test,&muscle biop.wat are genetic blood tests,may explain kids sympt

 Dermatomysositis.Wat are the blood tests needed,EMG results wheldl,refused tisue test,&muscle biop.wat are genetic blood tests,may explain kids sympt

Several things: but first, the muscles break down. Measuring muscle proteins in the blood (CPK, Myosin) will be positive if the disease is active. The pattern of the pain, violet eyelids, sky high muscle enzymes would be pretty diagnostic. Biopsy (which isn't taht bad) would be definitive. EMG (as painful as biopsy) would just show sick muscle. ...Read more

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Can an ANA test or any blood test used to diagnose auto-immune diseases show all the types of lupus?

Can an ANA test or any blood test used to diagnose auto-immune diseases show all the types of lupus?

Not necessarily: Patients with systemic le will almost always have a positive ana. However, patients with lupus confined to the skin, i.e. Discoid le or scle (subacute cutaneous le)may not have a positive ana. A positive ANA by itself does not necessarily indicate sle and is seen in a number of medical conditions. The diagnosis of sle is made on the basis of historical, clinical and laboratory criteria. ...Read more

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What are the best tests to detect liver conditions and jaundice ?

What are the best tests to detect liver conditions and jaundice ?

T bilirubin, AST....: Liver tests typically include: AST/ALT (detect liver damage) INR/PT/PTT (coagulation tests, detect indirectly liver function) Also a hepatitis panel is often ordered to make sure Hep B,C are not present. total bilirubin is the main test that is done for evaluating jaundice imaging that is done often is an ultrasound to detect the size/consistency of the liver itself ...Read more

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Can dermatologist treat every kind of skin disease including skin cancer ?

Can dermatologist treat every kind of skin disease including skin cancer ?

Yes: Dermatology is the correct field if you are looking for a physician who treats all types of skin disease, especially skin cancers, which are very common. Some dermatologic manifestations may be an indicator of systemic disease or disease of an organ system that causes a skin problem, but your dermatologist will be able to recognize and clarify this for you. ...Read more

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What is/are the best test(s) for detecting a monoclonal plasma cell disorder? How sensitive are these tests? Which types of mpcds can they detect?

What is/are the best test(s) for detecting a monoclonal plasma cell disorder? How sensitive are these tests? Which types of mpcds can they detect?

SPEP: The best test is a serum protein electrophoresis. It is very sensitive and specific. The disease is rare in anyone under the age of 40. For the vast majority of people the disease does not progress for many years 10-20+ so there is no role for screening. ...Read more

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What are the specific blood and urine tests used to establish autoimmune diseases?

What are the specific blood and urine tests used to establish autoimmune diseases?

Many tests: There are a multitude of lab tests to detect autoimmune disorders and they can be quite confusing. A rheumatologist will order the specific tests based on his evaluation of the individual patient's signs and symptoms. ...Read more