Pigmentation Disorders Flashcards
_________ - are caused by an overgrowth of the cells that create pigment in skin. Happen when blood vessels don’t form correctly — either there are too many of them or they’re wider than usual.
Vascular birthmarks
What are the common vascular birthmarks?
macular stains, hemangiomas, and port-wine stains
_______ - is an abnormal build up of blood vessels, in the skin or internal organs. It is a type of vascular birthmark as opposed to other types of birthmarks that are called Pigmented marks
hemangioma
True or False:
The classically recognized hemangioma is a visible red skin lesion that may be in the top skin layers, deeper in the skin,or a mixture of both.
True
Hemangioma that is in the top skin layers.
capillary aka strawberry hemangioma
Hemangioma that is deeper in the skin.
cavernous hemangioma
True or False:
Hemangiomas are usually present at birth, although they may appear within a few months after birth, often beginning at a site that has appeared slightly dusky or a different colour, compared with the surrounding tissue.
True
Hemangiomas, both deep and superficial, undergo a rapid growth phase in which the volume and size increase rapidly. This phase is followed by a _______ , when the hemangioma changes very little and an __________ in which the hemangioma begins to disappear.
rest phase
involutional phase
What are the common areas that hemagioma may appear?
Hemangiomas may be present anywhere on the body; however, they are most disturbing to parents when they are on the infant’s face or head.
_____________ - may interfere with the development of normal vision and must be treated in the first few months of life.
Hemangiomas of the eyelid
True or False:
On rare occasions, the size and location of hemangiomas may interfere with breathing, feeding, or other vital functions. These lesions also require early treatment.
True
_______________ - may develop secondary infections and ulcerate. Bleeding is common and may be significant following injury to the hemangioma.
Large cavernous hemangiomas
What are the symptoms of hemagioma?
- A red to reddish-purple, raised lesion on the skin
- A massive, raised tumor with blood vessels (a possibility)
True or False:
Occasionally, a hemangioma may be associated with other rare syndromes. Additional studies may determine if any of these syndromes are present.
True
What are the treatment for superficial “ strawberry” hemagioma?
Superficial or “strawberry” hemangiomas are seldom treated. When they are allowed todisappear on their own, the result shows a normal-appearing skin. In some cases, a laser may be used to eradicate the small vessels.
What are the treatment for Cavernous hemangiomas?
injections of steroids or laser treatments ( eyelid hemangioma and obstruct vision)
Large cavernous hemangiomas or mixed hemangiomas are treated, when appropriate, with oral steroids and injections of steroids, directly into the hemangioma.
What are the complicatons of Hemangioma?
Complications
- Bleeding
- Visual abnormalities (amblyopia, strabismus)
- Psychosocial problems
A flat pink, red or purplish lesion present at birth. It is found usually on the head and/or neck, does not blanch and it persists throughout life. The involved skin may thicken slightly and develop an irregular, pebbled surface as a child grows.
Port Wine Stain