Fig 1From: Traumatic injuries of thigh and calf muscles in athletes: role and clinical relevance of MR imaging and ultrasoundA 21-year-old sprinter presenting with a left hamstring injury, clinically diagnosed as a grade 1 injury. a Axial FS PD-w TSE image shows an area of hyperintensity with a feathery appearance (arrow), consistent with a strain of the long head of the biceps femoris (L). A marker is placed to indicate the location of tenderness. b Epifascial oedema (arrow) is noted between the long head of the biceps femoris (L) and the semitendinosus (T). c Coronal FS PD-w TSE image demonstrates the extent of injury in the longitudinal direction (arrows)Back to article page