Does trunk liposuction include the back?

Hi and thanks for the question. In short, it depends on the surgeon and on what was discussed and detailed in your surgical quote. When I perform Vaser-assisted lipoplasty of the trunk, it includes full abdomen, flanks (sides), and upper and lower back. That, by definition is the "trunk".
Best of luck,
Glenn Vallecillos, MD, FACS, Board Certified Plastic Surgeon 

Since none of us was present during your surgical consultation we cannot really know what was discussed between you and your surgeon. The only way to get an answer would be to call the office for specifics (the exact areas (ie flanks, waist, upper back, mid back, lateral chest, upper abdomen, lower abdomen) should have been spelled out because the word "trunk" is very nonspecific. And if you left the office not knowing the details, I would be worried about what kind of consultation you were given. You might do well to see more than one consultant.