Paracoronal MR image of the TMJ at the maximal open-mouth position in a patient with TMJ-D and neuropathic pain. Paracoronal MR image of the TMJ at the maximal open-mouth position in a patient with TMJ-D and neuropathic pain. The reduced distance between the medially displaced disk and the oval foramen-mandibular nerve is well demonstrated. Note also the simultaneous presence of joint effusion (arrowhead). E. Pedullà et al. AJNR Am J Neuroradiol 2009;30:1414-1418 ©2009 by American Society of Neuroradiology