Robert A. Schwartz, MD, MPH

Pigmenting Purpuric Dermatoses: Striking But Not a Manifestation of COVID-19 Infection

Dermatologists should be aware of the clinical presentations of pigmenting purpuric dermatoses (PPDs).

Author:: Marcus L. Elias, MD; Ann M. John, MD; Spandana Maddukuri, BS; Robert A. Schwartz, MD, MPH; W. Clark Lambert, MD, PhD

Melanoma treatment delays (MTDs) have been linked to poor outcomes. More delays are seen in patients who are older than 50 years, female, nonwhite...

Phytophotodermatitis (PPD) is a toxic reaction resulting from contact with a photosensitizing botanical chemical followed by exposure to solar or...

Author:: Fernanda Salgado, BA; Marc Zachary Handler, MD; Robert A. Schwartz, MD, MPH

Onychomadesis is the proximal separation of the nail plate from the nail matrix due to a temporary cessation of nail growth. It can occur in...

Author:: Cristian Serna-Tamayo, MD; Camila K. Janniger, MD; Giuseppe Micali, MD; Robert A. Schwartz, MD, MPH

Acne may present in neonates, infants, and small children. Neonatal and infantile acne vulgaris are not considered to be rare. The presentation of...

Rosacea is a condition of vasomotor instability characterized by facial erythema most notable in the central convex areas of the face, including...

Author:: Devang G. Patel, MD; George Kihiczak, MD; Robert A. Schwartz, MD, MPH; Camila K. Janniger, MD; W.Clark Lambert, MD, PhD

No abstract available.