Is it possible to slim the middle part of the nose without touching the tip nor the bridge?

Rhinoplasty is a surgery to change the shape of the nose for breathing or appearance.Many patients request a slimmer and more refined nose. There may be particular areas that they want to change and areas they do not want to change. The most important consideration is making the nose blend with the rest of the face. This may be a big change to one area or multiple subtle changes.I recommend a consultation with a rhinoplasty specialist so she/he can ask you questions, examine your nose, and take photographs. I like to use 3D computer simulation to get on the same page as my patient regarding their goals. Safety comes first. 

Every rhinoplasty procedure is individualized to meet the needs of that patient; if it is preferable to just change the middle of the nose that is what should be done. Unfortunately the picture is not attached to your post.