This 14 year old male was found to have an enhancing tangle of abnormal vessels on the medial aspect of the right upper chest. This is also know as an AVM (ArterioVenous Malformation). An AVM is defined (by brainavm.uhnres.utoronto.ca) as: A tangle of abnormal and poorly formed blood vessels (arteries and veins). They can occur anywhere in the […]