[Demyelinating nervous lesions in myalgia-eosinophilia syndrome induced by L Tryptophan].
A case of severe peripheral nerve lesions in a patient with eosinophilia-myalgia syndrome induced by L-Tryptophan is reported. Both superficial radial nerves were very tender on palpation. Biopsy of the radial nerve showed myelin abnormalities of the type observed in experimental chronic nerve entrapment. Nerve lesions included asymmetrical distortion of the myelin sheath, segmental demyelination, axonal degeneration and regeneration. Such abnormalities suggest that mechanical factors, presumably due to proliferation of connective tissue, play a role in the nerve lesions observed in this patient.
Labauge
P
P
Service de Neurologie du CHU Bicêtre, UFR du Kremlin-Bicêtre Université Parix XI.
Moulonguet
A
A
Penaud
D
D
Lessana-Leibowitch
M
M
Kahn
M F
MF
Said
G
G
D003711:Demyelinating Diseases / Q000139:chemically induced* / Q000473:pathology; D016603:Eosinophilia-Myalgia Syndrome / Q000150:complications*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010523:Peripheral Nervous System Diseases / Q000139:chemically induced; D014364:Tryptophan / Q000009:adverse effects*
D014364:Tryptophan
Lésions nerveuses démyélinisantes au cours du syndrome myalgies-éosinophilie secondaire à la prise de L-tryptophane.