The Verigene Blood Culture-Gram-Negative (BC-GN) microarray-based assay (Nanosphere, Inc., Northbrook, IL) was used to investigate underlying resistance mechanism in the P.  aeruginosa isolate but CTX-M, KPC, NDM, VIM, IMP, and OXA gene were not detected. The gene discussed is CYP27A1; the disease is ganglioneuroma.