RARE CAUSE OF BACTERAEMIA: MICROBACTERIUM ARBORESCENS.

Microbacterium arborescens, among coryneform bacteria are gram positive rods with orange pigmented colonies. Usually these are environmental contaminant but has shown invasive potential in immunocompromised individuals.A 56 yrs old lady presented with uncontrolled hyperglycaemia and hypertension. M. arborescens was isolated on blood culture. Identication was done based on biochemical characterictics and conrmed by Matrix assisted light desorption ionisation Time of Flight Mass Spectrometry( MALDI TOFF MS). Further amplication and sequencing was done and phylogenetic tree was contructed. Tree clearly shows clinical strain PGI 2 is different from environmental strain