They appear to be nodules, and so should be correctable. I'm not sure how well
HA takes to "breaking up via cannula" like
PMMA, but I can't imagine it being too dissimilar and would ask Dr.
Shafer if this is worth consideration.
Also, given that the issues aren't "major complications" and largely aesthetic, my recommendation would be to continue treatment with Dr.
Shafer since I'm not sure what Dr. Alter or Dr.
Solomon would do that Dr.
Shafer isn't already qualified/trained to do, in terms of fixing your problem. I'd pursue 2nd/3rd opinions if you decide more aggressive solutions are required, which I'd be surprised considering
HA's temporary nature.
Also, while this may seem counter-intuitive, the idea of re-filling the shaft with
HA is also another option. You see, the dissolving agent used may not get 100% of the filler in one-go, hence why you have residual nodules after your initial treatment. I'd wonder if getting a "layer" of
HA re-injected while breaking up the nodules would prove more effective than outright eliminating the
HA altogether? Just thinking aloud here. Thanks for sharing/updating.