<p>Measuring limbs and noting patients reports tells us about the effects of a disrupted lymphatic system not about changes to lymphatic function. To know something of the latter, the only option is lymphoscintigraphy. Each measurement we make adds something to our knowledge and we must continue to measure as we think best, according to the limitations of our equipment. Our greatest gain will come not from what we measure but what and when we measure, with our greatest aim being early detection of subtle changes prior to any clincially discernable phase.</p>
