. Acute transverse myelitis (Spinal vascular syphilis) - Spinal arterial thrombosis produces myelitis of sudden onset or with premonitory pains, if co

paraplegia and sphincter disturbances develop between a few days to several weeks after onset of pains. 2. Acute transverse myelitis (Spinal vascular syphilis) - Spinal arterial thrombosis produces myelitis of sudden onset or with premonitory pains, if coexisting syphilitic meningeal involvement. Symptoms of complete or almost complete transection of the cord. If the lateral branch of the anterior spinal artery is thrombosed, there is weakness of segmental muscles and also hemianaesthesia on opposite side if spinothalamic tract is damaged. In thrombosis of posterior spinal artery signs are confined to a few segments. Postural and vibration sense are impaired if posterior columns involved. 3. Cervical hypertrophic pachymeningitis - (i) Pain in neck, radiating down the upper limbs and between the shoulders. (ii) Progressive weakness and atrophy of muscles supplied by the corresponding anterior roots. (iii) Finally progressive spastic paraplegia with sensory loss below the level of the lesion. CSF -Mild or moderate lymphocytic pleocytosis, protein content greatly elevated. 4. Erb's spastic paraparesis-Progression of paraparesis is very slow and there is little sensory loss