Analysis of dendritic cells in solitary angiofibromas for factor VIII.

We studied dendritic cells in the dermis of six angiofibromas by the peroxidase-antiperoxidase method in order to determine whether they are endothelial cells. The primary antiserum used was directed to factor VIII, an endothelial cell marker. The dendritic cells were not immunoreactive for factor VIII, suggesting that they are not endothelial cells.