There are many types of hemangiomas- most of which are seen as birthmarks. Spinal hemangiomas may be misdiagnosed as spinal multiple sclerosis lesions. This is why a neurologist who specialize in MS are so important.
Hemangiomas form due to an abnormal build-up of blood vessels. MS lesions result from inflammation due to the loss of myelin- the insulation of the nerve tissue. While spinal hemangiomas present as soft, benign tumors on the thoracic or lumbar area of the spine, lesions due to MS are firm in texture, occurring predominantly in the neck and cervical region, but may also occur on the thoracic spine. I have had lesions from my head to my thoracic spine.
If you have had an MRI and it shows evidence of hemangiomas present, your doctor should be able to tell you.
I hope this helps you. Remember this, there are a multitude of possible causes for lesions. Although lesions do occur in MS cases, a viral infection could also leave lesions. Again, having the right neurologist(one who deals with MS) will make a difference in your diagnosis.
If you do not mind, what has presented for you?