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...
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...
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...
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.
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...
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...
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...
Article

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...
Article

Pruritic rash and nocturnal itching
- Author:
- Mengyi Zha, MD
- Richard P. Usatine, MD
UV light illuminated the patient’s diagnosis.
Article

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

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

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

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

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.
Article

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...