Schwannomatosis
Also known as: Schwannoma · Peripheral Nerve Sheath Tumor · PNST · Neurilemmoma · Multicentric Schwannomatosis
Overview
What it is
Schwannomatosis is a rare nervous system disorder where multiple non-cancerous tumors, called schwannomas, grow on the protective sheaths surrounding the nerves. These growths put pressure on the nerve pathways, which disrupts normal communication between the brain and the body. This canine condition was formally described in a 2025 case report and resembles the hereditary syndrome found in humans.
How it presents
The condition typically becomes noticeable in middle-aged dogs through chronic pain, progressive limping, muscle loss, or weakness that can lead to paralysis. The specific symptoms depend on which nerves or spinal cord segments are affected by the tumors.
Treatment
While there is no cure, the condition is managed with lifelong supportive care, including pain management, physical therapy, and advanced diagnostics like MRIs. The estimated cost for this ongoing care ranges from 2,500 to 8,000 EUR.
How it's tested
Affected breeds
Treatment cost
Estimated range of typical treatment cost. Actual cost depends on severity, clinic and region.
Frequently asked
What is Schwannomatosis?
Schwannomatosis is a rare nervous system disorder where multiple non-cancerous tumors, called schwannomas, grow on the protective sheaths surrounding the nerves. These growths put pressure on the nerve pathways, which disrupts normal communication between the brain and the body. This canine condition was formally described in a 2025 case report and resembles the hereditary syndrome found in humans.
How is Schwannomatosis tested?
Various clinical and genetic tests are used depending on the breed and presentation.
Which breeds are most affected?
This condition isn't tied to a specific breed in our database.