Chronic inflammatory demyelinating polyneuropathy (CIDP)

Case contributed by Derek Smith
Diagnosis almost certain

Presentation

4 months of progressive leg weakness and distal sensory loss. Elevated CSF protein (2.9 g/L).

Patient Data

Age: 40 years
Gender: Male
This study is a stack
Sagittal
T1
This study is a stack
Sagittal
T2
This study is a stack
Sagittal
T1 C+
This study is a stack
Axial
T1
This study is a stack
Axial
T2
This study is a stack
Axial
T1 C+
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Info

Thickening and enhancement of the lumbosacral nerve roots. No abnormal enhancement nor signal abnormality of the spinal cord. Normal CSF signal.

Minor disc degeneration at L4/5 and L5/S1, no neural compression.

No enhancement nor signal abnormality of the upper spine (not included).

Case Discussion

Thickening and enhancement of lumbosacral nerve roots, compatible with CIDP in this clinical circumstance. Nerve conduction studies also suggest CIDP. Paraneoplastic aetiology in differential but no evidence of primary elsewhere on imaging.

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