5 páginasPlatelet-rich plasma (PRP) is a platelet concentrate that is obtained after centrifugation and may influence tissues healing by growth factors released after platelet degranulation. This treatment has been used for the management of muscles, ligaments, and tendinopathy injuries with promising results, there is still limited clinical evidence for its use. In this study we present the report of a case of a 50-year-old soccer player who presented an injury at the origin of the ischeotibial muscles of the right thigh. On day 13, after the injury, autologous Platelet Rich Plasma (APRP) was applied under ultrasound (US) guidance. The control by US and Nuclear Magnetic Resonance (NMR) was performed two weeks after the PPR application, whi...