Presentation
Unexplained right quadriceps weakness.
Patient Data
Age: 60 years
Gender: Male
From the case:
Idiopathic femoral mononeuropathy
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Hyperintense T2 signal along the pelvic course of the right femoral nerve from the lumbar plexus down to the lacuna vasorum, especially within the iliopsoas muscle.
Case Discussion
Extensive (non focal, non nodular) high T2 signal along a peripheral nerve most probably results from inflammatory neuritis 1.