Symptoms of tumefactive multiple sclerosis often are not typical of general multiple sclerosis symptoms.
Tumefactive MS symptoms may include:
- Cognitive abnormalities
- Mental confusion
- Difficulty understanding and forming speech, known as aphasia
- Difficulty with the movement patterns needed to produce speech, known as apraxia
Causes and Risk Factors
Tumefactive multiple sclerosis is rare and its cause is unknown.
Since the risk of multiple sclerosis is significantly higher when a parent has been diagnosed with the disease, genetic factors may play a role. The unusual relationship between a person's geographic location during childhood and the risk of multiple sclerosis later in life suggests that there may be environmental factors at work in the disease.