General Discussion

which can explain all his intermittent progressive cognitive, language, gait, facial, and classical dementia symptoms (sundowning, confusion, aggressive/misplaced anger, and others), but likewise throat/speaking difficulties, including hoarseness. Hoarseness can be a symptom of frontotemporal dementia (FTD) because the disease can affect the muscles involved in speech, leading to difficulties in motor control for speech (apraxia of speech) and general muscle weakness.

So, yeah, no doubt that he is receiving MRIs to monitor progression, and he is likely receiving some experimental drugs to slow the FTD progression (if I and others are correct). Several of these involve frequent intravenous injections (perhaps explaining the constant bruising of his hand).