“…7,[22][23][24] Finally, a variety of imaging modalities and bedside technologies have been considered, including ultrasound and computed tomography (CT) of the head and neck, functional lymphatic imaging, and impedance-based studies. 11,16,25,26 In the two most recent systematic reviews on the subject, both in 2015, the sheer range of assessment tools available was clearly demonstrated 13,27 : the review by Flores et al identified 86 discrete outcome measures for HNL in the literature, of which 46 measures were only addressed in a single article. 27 Since 2015, many papers have been published that have either advanced existing or proposed entirely new assessment methods for HNL.…”