Term: Myelomalacia
Myelomalacia literally means “soft spinal cord.”
It is used most commonly in veterinary medicine as part of a pathological processed called ascending-descending myelomalacia (a.k.a., hemorrhagic myelomalacia).
NeuroPetVet was created and is maintained by Dr. Mark Troxel, a board-certified veterinary neurologist. Dr. Troxel received his veterinary degree from the Iowa State University College of Veterinary Medicine in 1999. Following veterinary school, Dr. Troxel completed a rotating internship in small animal medicine, surgery and critical care at VCA South Shore Animal Hospital in South Weymouth, MA in 2000. He then went on to complete an internal medicine specialty internship at Garden State Veterinary Specialists in New Jersey in 2001. From 2001 to 2004, Dr. Troxel was at the University of Pennsylvania’s School of Veterinary Medicine to complete a residency in medical neurology and neurosurgery. Dr. Troxel became board-certified in neurology by the American College of Veterinary Internal Medicine in July 2004. Following his residency, Dr. Troxel served as the staff neurologist at VCA South Shore Animal Hospital until he joined the Neurology/Neurosurgery Department at Massachusetts Veterinary Referral Hospital in 2005. He has also received an advanced neurosurgery certificate of training and is certified in cervical disc arthroplasty for disc-associated Wobbler Syndrome.
Dr. Troxel is a member of the American College of Veterinary Internal Medicine, Veterinary Neurosurgical Society, American Veterinary Medical Association, Massachusetts Veterinary Medical Association, and the International Veterinary Academy of Pain Management.
Dr. Troxel frequently lectures at local, regional and national meetings to veterinarians, students, and technicians. His clinical interests include canine & feline brain tumors, neurosurgery, and vestibular dysfunction.
Myelomalacia literally means “soft spinal cord.”
It is used most commonly in veterinary medicine as part of a pathological processed called ascending-descending myelomalacia (a.k.a., hemorrhagic myelomalacia).
A form of epilepsy characterized by change in seizure frequency associated with hormonal changes during the menstrual cycle
The foramen of Monro (a.k.a., interventricular foramen) are channels that connect the lateral ventricles to the third ventricle allowing CSF to pass to the rest of the ventricular system.
This month’s case is a Yorkie that had a sudden onset of lameness/weakness in the hind limbs the night before presentation that had progressed to inability to walk on all 4 limbs by the following morning.
The dog was referred to the Neurology Department for evaluation following a sudden onset of left pelvic limb weakness one week earlier.
Extrapyramidal refers to the motor tracts that arise outside the cerebral cortex.
10yr MC Boston Terrier that was acutely unable to walk on pelvic limbs
Neurotmesis is complete severance of the entire nerve fiber, including the axon, myelin sheath, Schwann cells and endoneurium.
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