epidermal nevus

Question 1

age when it is present.distribution

Answer 1

Usually present at birth or occurs in in ancy; rarely, it develops in puberty. All epidermal nevi on the head/neck region are present at birth.

Question 2

Whenthelesionsareextensive,theyaretermed

Answer 2

systematized epidermal nevus

Question 3

andwhentheyare located on hal the body, they are termed

Answer 3

nevus unius lateris

Question 4

Linearlesionscanexhibiterythema,scaling,andcrusting,andarethencalled

Answer 4

infammatorylinear verrucousepidermalnevus(ILVEN)

Question 5

Extensiveepidermalnevi(epidermalnevussyndrome)maybemultisystemdisordersandmaybe
associated with developmental abnormalities

Answer 5

bone cysts, hyperplasia o bone, scoliosis, spina bi da, and kyphosis), vitamin D-resistant rickets, and neurologic problems (mental retardation, seizures,
c o r t i c a l a t r o p h y , a n d h y d r o c e p h a l u s ) . Th e s e p a t i e n t s r e q u i r e a c o m p l e t e e x a m i n a t i o n , i n c l u d i n g t h e eyes (cataracts, optic nerve hypoplasia), and cardiac studies to rule out aneurysms or patent ductus arteriosus.

Question 6

tx

Answer 6

Excision is the best treatment

Question 7

lesion

Answer 7

■ Severalvariants:The verrucousepidermalnevusmaybe localized ormultiple.Lesionsare skin-colored, brown,orgrayish-brown(Fig.9-46)andarecomposedo closelysetverrucouspapules,wellcir- cumscribed; they are o ten in a linear arrangement—especially on the leg—or they may appear in Blaschko lines on the trunk