Related Experiment Video
Updated: Jul 29, 2026

A Patient-Derived Xenograft Model for Venous Malformation
Published on: June 15, 2020
Naevus anaemicus with teleangiectatic vessels
1Department of Dermatology, University Hospital, SE-751 85 Uppsala, Sweden. lennart.juhlin@medsci.uu.se
Abstract:
We describe a 20-year-old man with naevus anaemicus on the chest where, after dermabrasion of the epidermis, enlarged teleangiectatic dark-red vessels were seen within the previously pale area. They were clearly different from those seen on dermabrasion at this site in normal skin and in patients with vitiligo where the area is lighter red with only small punctual bleedings from arterial capillaries. The naevus anaemicus and a port-wine stain (naevus flammeus) in the same location is a phenomenon of vascular twin spotting, which was revealed when the epidermis was removed. The area was transplanted with thin epidermal grafts and healed within 2 weeks. One year later the naevus looked the same as before grafting. Much thicker grafts than those used by us will be needed, but they are not cosmetically acceptable.
More Related Videos
08:04In Vitro Three-Dimensional Sprouting Assay of Angiogenesis Using Mouse Embryonic Stem Cells for Vascular Disease Modeling and Drug Testing
Published on: May 11, 2021
05:14Characterization of Vascular Morphology of Neovascular Age-Related Macular Degeneration by Indocyanine Green Angiography
Published on: August 11, 2023
Related Concept Videos
Mechanism of Angiogenesis
Regulation of Angiogenesis and Blood Supply
Skin Cancer
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Development of Blood Vessels
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
Esophageal Varices-I: Introduction