Progressive plaque in a 9-year-old boy
April 7, 2020
Anxious parents present their healthy 9-year-old son for evaluation of a slowly enlarging plaque that began developing on his lower back 3 months ago. What's the diagnosis?
Bernard A Cohen, MD
Linear papules appear on a boy’s thumb, wrist
January 10, 2020
A healthy 6-year-old boy presents for evaluation with a 3-month history of an asymptomatic rash extending from his left thumb to his left wrist. What's the diagnosis?
Protuberant blister over newborn’s lumbar spine
January 1, 2018
A healthy full-term newborn presented with a prominent sacral dimple within an oval patch. Ultrasound showed no evidence of spinal anomalies, and the child was discharged home. Three days later, the patch became elevated, red, and moist appearing, and she was brought to the emergency department (ED) for further evaluation of the “growing blister.”
Ultraviolet radiation exposure and melanoma
May 1, 2012
The incidence of childhood melanoma is increasing. There is evidence that cumulative exposure to ultraviolet radiation from the sun in the first 18 years of life contributes to the development of future skin cancers.
