The purpose of this research study is to develop a better understanding of the cause and natural history of vascular anomalies and related syndromes. This study is being done in order to develop a better understanding of the cause of vascular anomalies in order to to improve care for people who are affected by these anomalies and related syndromes.

This study is being done at the University of Wisconsin-Madison (UW-Madison) and other sites in North America and Europe. A total of about 1000 people will participate in this study. About 20 – 30 people will take part in the study here at the Medical University of South Carolina.

This is a 5-year, longitudinal, observational study of adult and pediatric patients (all ages) being treated for Immune-Mediated Inflammatory Skin Conditions. In addition to the study database, a biospecimen repository will be included in order to perform studies on biomarkers of response.

Patients being prescribed medical therapy for IMISC will be eligible for enrollment. Treatment algorithms will follow each site's local standard of care and no specific treatments, assessments, and/or laboratory tests will be dictated by enrollment in the main TARGET-DERM Program. Patients will be screened and enrolled at a regularly scheduled clinic visit. Up to three years of retrospective
medical records from patients who provide consent/assent and meet all inclusion and exclusion criteria will be obtained by the research site. Records will include but will not be limited to: hospitalizations, laboratory reports, clinic notes, telephone contact reports, medication lists, reasons for medication initiation and/or discontinuation, biopsy results, and imaging. Patients may
also be linked to external databases (such as patient support programs). Patients will also be asked to provide biological samples and complete patient reported outcome (PRO) surveys, although participation in these two portions is optional.

During the follow-up period, the research site will prospectively submit the research subjects' medical records approximately every 6 to 12 months, for up to 5 years. Patients/legal representatives ("parent proxy") will be asked to complete PRO surveys at regular intervals during this follow-up period.