Please, if you are interested in this illness, or any other one, I implore you not just to rely on the anecdotes of people on the forum. (Where the subtext often seems to be, I have seen this, and MLC is not the same.) This is taken from the article. It makes a strong case that it is not always so clearcut.
Also, just to note, is this a forum with hundreds of thousands of members? Isn't what we are dealing with kind of rare?
From the article:
Patients generally receive from one to four misdiagnoses, and it may take years to finally get the right answer. Mistaken diagnoses can include Alzheimer’s disease, stroke, midlife crisis or psychiatric illnesses like depression, bipolar disorder, post-traumatic stress or anxiety. Many relatives of patients say doctors dismiss their reports of personality change. But it is real.
“They totally break down in their ability to connect with other people and care about them,” Dr. Miller said.
There are eight subtypes of frontotemporal degeneration, sorted by the symptoms they cause. Some affect behavior. Others, grouped under the heading primary progressive aphasia, affect language. Still others affect movement, leading to disorders that resemble Parkinson’s or Lou Gehrig’s disease (also called amyotrophic lateral sclerosis or A.L.S.).
But patients may match more than one category, and the subtype may change as the disease progresses.
“I see a lot who don’t present like the textbook,” said Dr. Edward Huey, an assistant professor of psychiatry and neurology at Columbia University Medical Center.
In most patients, MRI and other scans reveal shrinkage in the frontal and temporal lobes, sometimes to a shocking degree.
“If I showed you more extreme cases, you could read it from across the room,” Dr. Huey said.
He said researchers were using imaging to find out if specific symptoms could be mapped to atrophy in certain spots.
“The frontal lobes are sort of the last frontier in the brain,” Dr. Huey said, adding that the losses these patients suffer are helping researchers understand more about what the frontal lobes do. As the brain atrophy progresses, Dr. Huey said, patients “have pieces of psychiatric syndromes, but not the whole syndrome.”