|Symptoms||persistent dark red to dark purple hemorrhagic skin patches or plaques|
|Causes||vessel wall damage (vasculitis/depositional disease/angioinvasion by organism) or vessel lumen occlusion (thrombotic or embolic disease)|
|Treatment||Underlying cause and would care including circulatory support|
Retiform purpura are lesions demonstrating an angulated or branched configuration. Retiform purpura is caused by blood vessel wall damage or occlusion of the vessel lumen resulting in complete vessel obstruction and skin ischaemia resulting in downstream cutaneous ischemia, purpura, and necrosis.
- Georgesen, Corey; Fox, Lindy P.; Harp, Joanna (April 2020). "Retiform purpura: A diagnostic approach". Journal of the American Academy of Dermatology. 82 (4): 783–796. doi:10.1016/j.jaad.2019.07.112. Archived from the original on 24 October 2022. Retrieved 22 February 2023.
- Kelly, Robert. "Approach to the patient with retiform (angulated) purpura". UpToDate. Archived from the original on 6 February 2023. Retrieved 6 February 2023.
- Jones, Leah. "Retiform purpura". DermNet. Archived from the original on 6 February 2023. Retrieved 6 February 2023.