Jean-Philippe Lazareth

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Thirty-seven dissections have shown that the skin of the low back is innervated by the lateral branches of the dorsal rami of T12 and L1 in 22 cases (60%) or T12 L1 and L2, in 10 cases (27%) or T12 L1 and L2 receiving an anastomosis from L3 in 5 cases (13%). The most medial nerve crossed the iliac crest through a rigid osseo-aponeurotic orifice located 7–8(More)
A 38 year old patient developed multiple cranial nerve palsy, seizures and progressive alteration in consciousness. CSF examination revealed tumor cells and a tentative diagnosis of leptomeningeal carcinomatosis from an unknown primary tumor was made. Treatment with intrathecal methotrexate and cranial radiation therapy was started without effect. At(More)
Intracranial lipomas are rare lesions the pathogenesis of which is still a matter of debate. We report the case of a patient presenting an asymptomatic lipoma located in the quadrigeminal and supra-cerebellar cisterns. The lipoma was associated with hypoplasia of the right inferior colliculus and of the rostral part of the vermis. Analysis of the(More)
Bent spine syndrome (BSS), defined as an abnormal forward flexion of the trunk resolving in supine position, is usually related to parkinsonism, but can also be encountered in myopathies. This study evaluates whole-body muscle MRI (WB-mMRI) as a tool for detecting underlying myopathy in non-extrapyramidal BSS. Forty-three patients (90 % women; 53–86 years(More)
30 dissections have confirmed that the skin of the gluteal area is innervated by the posterior branches of T12 and L1, 19 times out of 30 (64 p. cent) or T12, L1 and L2, in 8 instances (26 p. cent) or T12, L1 and L2 receiving an anastomosis from L3, in 3 instances. This explains certain lumbo-gluteal pain coming from the dorso-lumbar area ("low lumbalgias(More)
Deux éléments nouveaux apparaissent au terme de notre travail: les branches postérieures de T12 et L1 innervent à elles seules la région fessière supérieure dans 60% des cas alors que celle de L3 n'a de territoire cutané que dans 13 % des cas, la branche postérieure la plus interne (L1 en règle ou L2) peut être intéressée par un syndrome canalaire(More)
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