Lore
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My brother Kevin (Cubbie) has Moyamoya
Posts: 819
Delaware, USA, usa, 419, 133, OH, Ohio
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Hi Debora,
I agree with Mar and she hit on the main point that MMD is commonly either misdiagnosed or undiagnosed or both. I am not a doctor but I can share my brother's experience and my own thoughts on the matter with you.
My brother Kevin who is now 48 went misdiagnosed and undiagnosed for 4 years even after he had a significant stroke. In retrospect, he had signs of MMD in his thirties. He actually experienced numbness and tingling in his limbs but thought nothing of it at the time because it was not dibilitating. Then came the TIA's and blackouts. Then came the stroke which was significant in that it took his speech and abstract thinking which has improved tremendously with therapy and over time. One symptom Kevin never had was a headache or migraine.
MMD has been found in infants clear through to age 67 and possibly beyond that.
The problem is most doctors are unfamiliar with MMD and therefore, they are not looking for MMD. Unfortunately, my experience has been that MMD isn't usually found by accident or early detection. It is usually found after some extreme circumstance such as limbs being affected or migraine headaches, TIA's, seizures and stroke. If MMD was more widely recognized by doctors, perhaps some would not have to experience the extremes if they could get help earlier. It's like anything, early detection is of the utmost importance.
Actually, when I look back, I believe Kevin had signs/symptoms even earlier than in his thirties. It is very possible to have the signs and symptom for years. Kevin is probably a good example of that. So for the 15 year old to have the symptoms and signs doesn't surprise me at all.
My experience has been one can have the signs and symptoms but not necessarily to the degree that get the attention of the doctors to do certain tests and especially an invasive test like angiogram or even MRI/MRA and some, although they have the symptoms don't necessarily have them to extreme.
Even though Kevin had signs and symptoms 13 years before his stroke, even after his stroke, tests did not reveal the MM collateral vessels. Even when the collateral vessels were detected on an angiogram, the doctor had no idea what it was. So, it is different for everyone. But I have to believe that one can have the symptoms and not experience the extremes necessarily until later in life and on the other hand, there are MM folks who have had all the extreme signs and symptoms at a very young age and all at once. Again, it is different for everyone.
In my opinion, MMD symptoms can mimic other conditions and an individual may have one or two symptoms while others have multiple symptoms. I suspect this can be very confusing both to the indivuidual experiencing the symptoms as well as the doctor trying to diagnose the problem. I do however, believe there are "common" symptoms that are a signal that it might possibly be MMD. Keep in mind, most doctors are unfamiliar with MMD and I have had doctors who have said to me they have never heard of MMD or seen MMD. Unfortunately, some of these were neurologists. More reason to bring attention to MoyaMoya disease.
I hope this helps.
Lore
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