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  2. Melena - Wikipedia

    en.wikipedia.org/wiki/Melena

    Melena is a form of blood in stool which refers to the dark black, tarry feces that are commonly associated with upper gastrointestinal bleeding. [1] The black color and characteristic strong odor are caused by hemoglobin in the blood being altered by digestive enzymes and intestinal bacteria.

  3. Acanthosis nigricans - Wikipedia

    en.wikipedia.org/wiki/Acanthosis_nigricans

    Acanthosis nigricans is a medical sign characterised by brown-to-black, poorly defined, velvety hyperpigmentation of the skin. [1] It is usually found in body folds, [2] such as the posterior and lateral folds of the neck, the armpits, groin, navel, forehead and other areas. [1]

  4. Melanocytic nevus - Wikipedia

    en.wikipedia.org/wiki/Melanocytic_nevus

    A mole can be either subdermal (under the skin) or a pigmented growth on the skin, formed mostly of a type of cell known as a melanocyte. The high concentration of the body's pigmenting agent, melanin, is responsible for their dark color. Moles are a member of the family of skin lesions known as nevi (singular "nevus"), occurring commonly in ...

  5. Why Is My Poop Light Tan? Here’s What Causes Pale or Clay ...

    www.aol.com/why-poop-light-tan-causes-210633163.html

    If your skin is looking a bit pale (which can occur in people of any skin tone), there’s usually a reason. It could be anything from a vitamin B12 deficiency to a symptom of anemia.The same is ...

  6. Oily Stool: What Doctors Need You to Know About Steatorrhea

    www.aol.com/oily-stool-doctors-know-steatorrhea...

    Steatorrhea refers to bulky, foul-smelling, oily stool that tends to be pale in color and float in the toilet bowl, resisting flushing. (These are the 9 most common reasons your poop is black .)

  7. Is that mole melanoma? How to tell if a mole is cancerous or not

    www.aol.com/news/mole-melanoma-tell-mole...

    This means the mole changes in size, shape or color as time passes. The below image shows how a melanoma changed in shape and border over the course of two years.

  8. Benign melanocytic nevus - Wikipedia

    en.wikipedia.org/wiki/Benign_melanocytic_nevus

    However, a melanocytic nevus is benign, and melanoma is malignant. Most melanocytic nevi never evolve into a cancer, with the lifetime risk for an individual nevus being 1 in 3000 for men and 1 in 11 000 for women. [5] Moreover, dermatologists have a standardized system for determining whether a skin lesion is suspicious for malignant melanoma.

  9. Dysplastic nevus - Wikipedia

    en.wikipedia.org/wiki/Dysplastic_nevus

    An atypical mole may also be referred to as an atypical melanocytic nevus, [2] atypical nevus, B-K mole, Clark's nevus, dysplastic melanocytic nevus, or nevus with architectural disorder. [3] Dysplastic nevi often grow to larger than ordinary moles and may have irregular and indistinct borders.