Surgery 5th year, 3rd lecture/part two (Dr. Ari Raheem Qader)
-
Upload
college-of-medicine-sulaymaniyah -
Category
Health & Medicine
-
view
1.093 -
download
7
description
Transcript of Surgery 5th year, 3rd lecture/part two (Dr. Ari Raheem Qader)
Cutaneous Vascular Anomalies
ByDr. Ari Zangana
There are two main categories:- Hemangiomas- Vascular malformations
They are totally different biological entities has been confirmed by immunohistochemical, radiological,
and hemodynamic studies .
Hemangiomas:Antenatal or postnatal endothelial proliferation
Hemangiomas:Grow rapidly during infancy, regress slowly during childhood,
and never appear in adulthood.
Hemangiomas: - Proliferative phase.- Involutional phase.
Proliferative phase:- Hemangioma grow rapidly during 6-8 months reach the maximum size by the end of the first year.
- Skin becomes elevated and red color.
Involutional phase:Color begins to pale and tumor fells less tense.
Hemangiomas:- Typically appear in the neonatal period.- Approximately 80% was a single tumor.- More common in female 3-5:1.- Incidence in white infant is 10%-20%.- Involution is complete in 50% of children by age 5 years.
- Normal skin is restored in about 50% .
Clinical types of hemangiomas:
New Terminology Old Terminology
- Superficial - Capillary- deep -Strawberry
Vascular malformations:
Are errors of embryonic developmentUsually obvious at birthNever regress and often expand
Vascular malformations:
Subcategorized based on predominant channel type and flow characteristics:
- Slow flow- Fast flow
Slow flow:- Capillary and telangiectases- Lymphatic malformation -Venous malformation
Fast flow:
- Arterial malformation- Arteriovenous malformation
Vascular malformations:
New terminology Old terminology Capillary Port wineVenous CavernousLymphatic Lymphangioma Cystic hygroma
Capillary Malformation
Venous Malformation
Arterial malformation