Have been brushing up on anatomy... While many discussions document which fascia are the ones being interacted with during the procedure, I wanted to know where those fascia went as the tissue transitioned away from the penis...
Found these two images helpful
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The right side highlights the volume accessible (if I'm reading it correctly) by this the typical
PMMA/
HA/
PCL filler
Attachment 9da309eeabf7494efbd28c0dfb94e0f1-1419551778.png not found
This is just another view, but under normal circumstances (i.e. not filled with urine)