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...

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...

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...

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...

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...

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

This Black woman has malar erythema and hyperpigmentation with sparing of the nasolabial folds. What's the condition and what are the key clinical...

Article

Melasma on the face of an African woman, with hyperpigmentation on the upper cheeks and lateral to the eyes.

Melasma

Author:
Nicole A. Negbenebor, MD
Candrice R. Heath, MD
Richard P. Usatine, MD

Melasma (also known as chloasma) is a pigmentary disorder that causes chronic symmetric hyperpigmentation on the face. In patients with...

Article

Melasma

Melasma

Author:
Nicole A. Negbenebor, MD
Richard P. Usatine, MD
Candrice R. Heath, MD

Hyperpigmentation on the cheeks, bridge of the nose, and upper lip in a Hispanic woman. What's the diagnosis?

Article

Vitiligo

Vitiligo

Author:
Uzoamaka Okoro, MD, MSc
Richard P. Usatine, MD
Candrice R. Heath, MD

Vitiligo is a chronic autoimmune disorder characterized by areas of depigmented white patches on the skin due to the loss of melanocytes in the...

Article

Vitiligo

Vitiligo

Author:
Uzoamaka Okoro, MD, MSc
Candrice R. Heath, MD
Richard P. Usatine, MD

Vitiligo is a chronic autoimmune disorder characterized by areas of depigmented white patches on the skin due to the loss of melanocytes in the...

Article

Axilla of a 65-year-old White man with erythrasma showing a well-demarcated erythematous plaque with fine scale

Erythrasma

Author:
Mavra Masood, MD, PGY-1
Candrice R. Heath, MD
Richard P. Usatine, MD

Erythrasma is a skin condition caused by acute or chronic infection of the outermost layer of the epidermis (stratum corneum) with ...

Article

A well-demarcated, redbrown plaque with fine scale in the antecubital fossa of an obese Hispanic woman

Erythrasma

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

A well-demarcated, red-brown plaque with fine scale in the antecubital fossa of an obese Hispanic woman. What's the condition, and what are the...

Article

Tinea capitis

Tinea capitis

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

Areas of alopecia with erythema and scale in a young Black boy with tinea capitis. He also had an enlarged posterior cervical lymph node (arrow)...

Article

Tinea capitis

Tinea Capitis

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

Tinea capitis is a common dermatophyte infection of the scalp in school-aged children.

Article

Severe longstanding hidradenitis suppurativa (Hurley stage III) with architectural changes, ropy scarring, granulation tissue, and purulent discharge in the axilla of a 35-year-old Black man.

Hidradenitis suppurativa

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

Severe longstanding hidradenitis suppurativa (Hurley stage III) with architectural changes, ropy scarring, granulation tissue, and purulent...

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