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    Richard P. Usatine, MD

    Article

    Moving Beyond Traditional Methods for Treatment of Acne Keloidalis Nuchae

    Author:
    Domenica Del Pozo, MD
    Richard P. Usatine, MD
    Candrice R. Heath, MD

    Acne keloidalis nuchae (AKN) is a chronic inflammatory condition commonly affecting the occipital scalp and posterior...

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    Article

    Moving Beyond Traditional Methods for Treatment of Acne Keloidalis Nuchae

    Author:
    Domenica Del Pozo, MD
    Richard P. Usatine, MD
    Candrice R. Heath, MD

    The Comparison

    A A 25-year-old man of Hispanic ethnicity with pink papules, pustules, and large keloidal tumors on the occipital...

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    Article

    Act Fast With Traction Alopecia to Avoid Permanent Hair Loss

    Author:
    Kayla Felix Taylor, MD, MS
    Richard P. Usatine, MD
    Candrice R. Heath, MD

    Often caused or worsened by hairstyling practices, traction alopecia can be reversible with proper treatment in its early stages but may result in...

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    Article

    Act Fast With Traction Alopecia to Avoid Permanent Hair Loss

    Author:
    Kayla Felix Taylor, MD, MS
    Richard P. Usatine, MD
    Candrice R. Heath, MD

    Traction alopecia is a common type of alopecia that ultimately can result in permanent hair loss.

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    Article

    Plantar Hyperpigmentation

    Author:
    Richard P. Usatine, MD
    Candrice R. Heath, MD

    Plantar hyperpigmentation is a benign finding in many individuals and is especially prevalent in those with darker skin...

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    Article

    Plantar Hyperpigmentation

    Author:
    Richard P. Usatine, MD
    Candrice R. Heath, MD

    Though it is a benign finding in many individuals, especially those with darker skin tones, it is important to differentiate plantar...

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    Article

    Dx Across the Skin Color Spectrum: Longitudinal Melanonychia

    Author:
    Tristi M. Edwards, MBBS, MSc
    Richard P. Usatine, MD
    Candrice R. Heath, MD

    A brown, black, or gray pigmented linear band that spans the length of the nail plate due to excess melanin, longitudinal melanonychia may be...

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    Article

    Melanoma manifesting as LM with a prominent Hutchinson sign in a Hispanic man, with variable shades of brown covering more than 50% of the nail width.

    Longitudinal Melanonychia

    Author:
    Tristi M. Edwards, MBBS, MSc
    Richard P. Usatine, MD
    Candrice R. Heath, MD

    A patient presented with variable shades of brown covering more than 50% of the nail width. What's the condition and what are the key clinical...

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    Article

    Scaly nodules on the right shoulder/axilla

    Pruritic rash and nocturnal itching

    Author:
    Mengyi Zha, MD
    Richard P. Usatine, MD

    UV light illuminated the patient’s diagnosis.

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    Article

    A Black woman with ACD on the neck

    Allergic contact dermatitis

    Author:
    Tristi M. Edwards, MBBS, MSc
    Richard P. Usatine, MD
    Candrice R. Heath, MD

    Allergic contact dermatitis (ACD) is an inflammatory condition of the skin caused by an immunologic response to 1 or more identifiable allergens...

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    Article

    Black woman with ACD on the neck

    Allergic Contact Dermatitis

    Author:
    Tristi M. Edwards, MBBS, MSc
    Richard P. Usatine, MD
    Candrice R. Heath, MD

    A Black woman with a rash on the neck that developed after new products were applied to the hair. What’s the condition and what...

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    Article

    An African woman with an SCC on the lower lip decades after a large facial burn, which is known as a Marjolin ulcer.

    Squamous Cell Carcinoma

    Author:
    Candrice R. Heath, MD
    Richard P. Usatine, MD

    An African woman presents with a growth on the lower lip decades after a large facial burn. What's the condition and what are the key clinical...

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    Article

    A 51-year-old Hispanic man with a squamous cell carcinoma (SCC) of the keratoacanthoma type on the arm.

    Squamous cell carcinoma

    Author:
    Candrice R. Heath, MD
    Richard P. Usatine, MD

    Cutaneous squamous cell carcinoma (SCC) develops from a malignant tumor of the keratinocytes, eccrine glands, or pilosebaceous units that invades...

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    Article

    Solitary, flesh-colored pedunculated mass

    Pedunculated gluteal mass

    Author:
    Zeeshan Afzal, MD
    Richard P. Usatine, MD

    Forceful compression made a small papule grow into this 3.5 × 4.5–cm mass.

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    Article

    A Black woman with malar erythema and hyperpigmentation from acute cutaneous lupus erythematosus. The nasolabial folds are spared.

    Systemic lupus erythematosus

    Author:
    Richard P. Usatine, MD
    Candrice R. Heath, MD

    Systemic lupus erythematosus (SLE) is a chronic autoimmune condition that affects the kidneys, lungs, brain, and heart, although it is not limited...

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