Article
- Author:
- Richard P. Usatine, MD
Publish date: September 10, 2024
The Comparison
A A 25-year-old man of Hispanic ethnicity with pink papules, pustules, and large keloidal tumors on the...
Article
- Author:
- Richard P. Usatine, MD
Publish date: July 9, 2024
Often caused or worsened by hairstyling practices, traction alopecia can be reversible with proper treatment in its early stages but may result in ...
Article
- Author:
- Richard P. Usatine, MD
Publish date: July 4, 2024
Traction alopecia is a common type of alopecia that ultimately can result in permanent hair loss.
Article
- Author:
- Richard P. Usatine, MD
Publish date: June 14, 2024
Plantar hyperpigmentation is a benign finding in many individuals and is especially prevalent in those with darker skin t...
Article
- Author:
- Richard P. Usatine, MD
Publish date: June 3, 2024
Though it is a benign finding in many individuals, especially those with darker skin tones, it is important to differentiate plantar hyperpigmentat...
Article
- Author:
- Richard P. Usatine, MD
Publish date: April 8, 2024
A brown, black, or gray pigmented linear band that spans the length of the nail plate due to excess melanin, longitudinal melanonychia may be attri...
Article
- Author:
- Richard P. Usatine, MD
Publish date: March 5, 2024
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 feat...
Article
- Author:
- Richard P. Usatine, MD
Publish date: October 12, 2023
UV light illuminated the patient’s diagnosis.
Article
- Author:
- Richard P. Usatine, MD
Publish date: October 12, 2023
Allergic contact dermatitis (ACD) is an inflammatory condition of the skin caused by an immunologic response to 1 or more identifiable allergens.
Article
- Author:
- Richard P. Usatine, MD
Publish date: October 3, 2023
A Black woman with a rash on the neck that developed after new products were applied to th...
Article
- Author:
- Richard P. Usatine, MD
Publish date: August 7, 2023
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
- Author:
- Richard P. Usatine, MD
Publish date: July 25, 2023
Cutaneous squamous cell carcinoma (SCC) develops from a malignant tumor of the keratinocytes, eccrine glands, or pilosebaceous units that invades t...
Article
- Author:
- Richard P. Usatine, MD
Publish date: June 13, 2023
Forceful compression made a small papule grow into this 3.5 × 4.5–cm mass.
Article
- Author:
- Richard P. Usatine, MD
Publish date: June 12, 2023
Systemic lupus erythematosus (SLE) is a chronic autoimmune condition that affects the kidneys, lungs, brain, and heart, although it is not limited ...
Article
- Author:
- Richard P. Usatine, MD
Publish date: June 6, 2023
This Black woman has malar erythema and hyperpigmentation with sparing of the nasolabial folds. What's the condition and what are the key clinical ...
