Description:Desmoid tumors (DT) are locally invasive soft tissue growths with no directed therapies currently. While two genes (ß-catenin and adenomatous polyposis coli) have been found in patients who develop desmoids, it is unclear how these mutations and other downstream mechanisms lead to desmoid tumorigenesis. Extensive research has been explored in the molecular biology of desmoids; however, the use of metabolomics to understand the how the low molecular weight complements of cells, tissues, and biological fluids are perturbed by this highly localized disease. Additionally, the Desmoid Collaboration for a Cure has identified 45 active drugs against primary cell lines. It is unclear how these therapies perturb the metabolome, outside the Wnt and notch pathways.