Supatra, Child With Ambras Syndrome, Thailand

• Circumscribed hypertrichosis
Congenital circumscribed hypertrichosis is associated with the presence of thick vellus hair on the upper extremities. Circumscribed signifies that this type of hypertrichosis is restricted to certain parts of the body, in this case, the extrasensory surfaces of the upper extremities. Hairy Elbow Syndrome, a type of congenital circumscribed hypertrichosis, shows excessive growth on and around the elbows. This type of hypertrichosis is present at birth, becoming more prominent during aging, only to regress at puberty.
• Localized hypertrichosis
Congenital localized hypertrichosis is a localized increase in hair density and length.