Secondary Dilatation of the Central Canal of the Spinal Cord Extending Few Spinal Segments above the Tumour Mass with Spinal Cord Atrophy

35 years old male patient presented clinically with progressive lower limb weakness and impotence of 3 years duration, disturbance of micturation with few drops of urine passing without the patient control was a prominent symptom. On examination the patient had atrophy of the anterior tibial group of muscles on the right side, with bilateral spasticity in both lower limbs and a sensory level at D8 spinal segment (D4-D5 vertebral segments). Reflex examination showed lost ankle reflexes in both lower limbs and diminished knee reflex on the left side while the knee reflex on the right side was exaggerated. Bilateral extensor planter responses were also noted. No other abnormalities were noted and the upper limbs were free. Clinical diagnosis of long spinal lesion extending from D8 spinal segment to the conus /epiconus regions was made.