What is a nevus sebaceous?
A nevus sebaceous is generally a solitary hairless patch in the scalp. It often has an orange-peel tan-orange appearance. These lesions have a small risk of becoming cancerous in adulthood, and it is often recommended to have them removed before puberty. What are petichiae? Petechiae are small pinpoint dots of blood under the skin. They do not blanch or become pale when touched. Petechiae can be found after rubbing or trauma of the skin, or on the face after severe coughing episodes. If there are many petechiae all over the body, it could be a sign of a serious systemic illness, infection or low platelet count. A child with many petechiae should see a doctor. What is pityriasis rosea? This is a benign rash on the trunk of the body. It starts with a “herald patch”—measuring 1-2 cm, this patch is scaly and salmon colored. Then a secondary rash appears within 10 days, and is a pinkish scaly rash, often in a Christmas-tree pattern on the back. No treatment is necessary, as the rash will se
