has part has part has_part characteristic of part of has modifier abnormal sympathetic system morphology abnormal sympathetic ganglion morphology MPheno.ontology abnormal sympathetic ganglia morphology sympathetic ganglion dysplasia any structural anomaly of the ganglia of the sympathetic nervous system including the paravertebral and the prevertebral ganglia, which include the sympathetic chain ganglia, the superior, middle, and inferior cervical ganglia, and the aorticorenal, celiac, and stellate ganglia sympathetic ganglia abnormalities MP:0001008 morphology abnormal sympathetic ganglion