They are rare and potentially aggressive tumors, difficult to diagnose due to non-specific symptoms and require a multidisciplinary approach at reference centers: sarcomas, tumors that affect the body’s supporting tissues, and which can arise in any organ, at any age. , represent 1% of all cancers and in Italy, as each of their main subgroups affects less than 6 out of 100 thousand people every year. “Numerous obstacles that patients encounter on their treatment path due to the rarity and great heterogeneity of these tumors, of which about 100 different types have been identified – experts warn – diagnoses that may be inappropriate or late, treatments that are not optimal , difficulties in accessing new drugs, lack of information, starting with that on the specialized centers to contact “.