Mixed Pain (Nociceptive and Neuropathic)

The purpose of this study is to compare the uptake of \[18F\]FTC-146 in healthy volunteers to that of individuals suffering from chronic pain with Spinal or Peripheral Nerve Origin. Primary Objectives: A) To quantify the bio-distribution of \[18F\] FTC-146 uptake in subjects with Spinal or Peripheral Nerve Origin pain and compare it with healthy controls. B) To determine whether painful schwannomas can be differentiated from non-painful schwannomas based on imaging. Secondary Objectives: A) To assess the reproducibility of \[18F\]FTC-146 PET imaging within the same healthy volunteer subjects using Test-Retest analysis. B) To investigate whether post-treatment \[18F\]FTC-146 uptake differs from pre-treatment uptake and correlate the imaging with subject reported pain level after treatment