The primary objective of this registry/repository is to store ongoing clinical data and biospecimens to facilitate the conduct of research on disorders of growth, genetic, and epigenetic alterations. This can also include storage of samples and data from relatives of the index patients to serve as study controls.

The purpose of this research study is to determine if certain markers in your blood are increased over the duration of your chemotherapy, especially as you get sicker, such as developing a severe infection (sepsis) or severe respiratory failure (acute respiratory distress syndrome).

This study is for people with growing abnormal lymph vessels called lymphatic malformations (LMs). This study has 3 parts and involves taking a study drug called TARA-002. The purpose of this study is to find out if the study drug is safe and effective (can help) people with LMs. Participants receive the study drug by injection and will complete other research assessments throughout the study.