| Type | MGI:General | Description | overgrowth of spinal cord; caudally expanded spinal cord persists from birth to adulthood the caudal extremity of the spinal cord, the conus medullaris, is located more posteriorly in mutants a mass of aberrant neural cells is seen in the caudal extremity of the cord newborn mutants contain a spinal cord with an intact central canal while no spinal cord, only the filum terminale, is seen in controls at this time 16 week old mutants contain an abnormal spinal cord complete with rudimentary dorsal root ganglia |
