The skin is the largest and most exposed tissue in the body. For this reason, diagnostic investigations aimed at revealing skin and subcutaneous lesions are recommended on a regular basis. Cysts, lipomas, hernias, nodules, lymph nodes are medically referred to as tumefactions and are often asymptomatic. Assessing their size, degree of depth and relationship to surrounding structures and vessels is the investigation performed by ultrasound of the skin and subcutis.