Abstract

Background: Parotid cyst is a common problem in patients treated by surgeons. However, Paracoccus yeei was isolated from an aerobic blood culture in a patient with parotid cyst as an unusual etiologic opportunistic agent. Methods: Since old biochemical identification kits are not able to identify this species, MALDI-TOF MS correctly was recommended to identify this isolate. Its identity was confirmed by sequencing of the 16S rRNA gene.
Results: The aligned sequences (16S rRNA gene) were used for a phylogenetic analysis (phylogenetic tree), which was produced using the BLAST pair-wise alignments. The sequence analysis determined that the best matches were with Paracoccus yeei.
Conclusions: Paracoccus yeei has been reported as a rare opportunistic human pathogen, we should actively com-municate to the clinic to improve the real positive rate.

DOI: 10.7754/Clin.Lab.2019.190125