abnormal phrenic nerve morphology abnormal innervation abnormal phrenic nerve innervation pattern 2013-08-09T09:08:34Z MP:0012054 MPheno.ontology any changes in the placement, morphology or number of phrenic nerve fibers providing motor supply to the diaphragm as well as sensory fibers to the central tendon, or in the thorax, phrenic nerve sensory fibers to the mediastinal pleura and pericardium csmith