[Congenital syphilitic meningomyelitis manifested in the adult].

We report a case of neurosyphilis of the spinal cord in a 38-year-old-man presenting with urinary incontinence and Argyll-Robertson sign. Anamnesis revealed the congenital origin of the disease. Urodynamics findings were consistent with a conus medullaris involvement and CSF study revealed a specific lymphocytic meningitis.

[Alcock's canal syndrome and perineal neuralgia].

Fifteen cases of perineal neuralgia are reviewed, the lesion arising from a canal syndrome due to compression of the pudendal nerve in the ischiorectal fossa (Alcock's canal syndrome). The clinical characteristic of the pain syndrome was its postural nature with the existence of a true Tinel sign (increased pain on sitting). Diagnosis was confirmed in all cases by a perineal electrophysiological which showed peripheral neurogenic signs on examination of perineal muscles and an increase in sacral evoked potentials latencies (latency of bulbocavernous or clitorido-anal reflexes, cortical somesthetic evoked potential from pudendal nerve).

[Polyneuropathy and solitary bone plasmacytoma. A new case].

The authors report a case of acute polyneuropathy revealing a solitary osseous plasmacytoma with osteo-dense and osteolytic bone lesions. Initially, the rapid progression of the sensory and motor loss led to treatment by plasma exchanges and irradiation of the plasmacytoma. Four months later, despite a significant improvement of the neurological condition, serum protein electrophoresis continued to show a peak of monoclonal immunoglobulin.