Delayed onset muscle soreness (DOMS) and biceps femoris injury - BAC grade 2b
Diagnosis certain
Presentation
Acute onset mid-belly left hamstring grab/cramp during the second half of the game. Pain walking. Positive hamstring signs.
Patient Data
Age: 25 years
Gender: Male
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Hyperintensity centered on the distal aspect of the proximal myotendinous junction of the biceps femoris with less than 10% cross-sectional involvement and approximately 10 cm of craniocaudal involvement. Distally there is a small volume of myofascial fluid. No involvement of the proximal free tendon.
Elsewhere, there is patchy muscle belly hyperintensity involving the proximal rectus femoris, quadratus femoris, proximal vastus lateralis and medialis, and mid semimembranosus.
Case Discussion
There are two muscle injuries present:
- proximal biceps femoris injury - BAC grade 2b.
- patchy muscle hyperintensity within the proximal thigh representing DOMS. BAC grade 0.