Calcipotriene is one of a number of synthetic drugs that mimic the action of vitamin D, the chemical structure of which is shown below.
Congenital is a word that means “present from birth” while a nevus is the medical term for a mole. Therefore, a congenital nevus is a mole that was present on the body from birth.
Becker’s nevus is an uncommon (but not rare) benign skin lesion. “Nevus” is another word for a mole and as such this growth appears as a very large and irregularly shaped mole. Which can be present at birth but most appear in puberty.
Cowden syndrome is a very rare genetic disease classically manifesting as the appearance of multiple hamartomas – a benign (but still problematic) kind of tumor – both on the skin and within internal organs.
Chicken pox (also called varicella) is a classically childhood skin disease that is caused by the varicella zoster virus, the same virus that causes shingles in adults.