• Peng Zhang, Jie Li, Yan-Zhen Zhang, and Xiao-Ning Li.
• Department of Clinical Laboratory, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, China.
• Medicine (Baltimore). 2021 Feb 12; 100 (6): e24696e24696.

RationalChromobacterium violaceum is a motile gram-negative bacterium. This bacterium commonly grows in tropical or subtropical areas in sewage and can cause opportunistic infections.Patient ConcernsA 50-year-old Chinese man had a skin ulcer in the middle of his left leg in front of the tibia. The diameter of the wound was 3.0 cm, the exudation was obvious, and necrotic tissue was attached to the wound. One week previously, he was working in a field where he accidentally punctured his left leg.DiagnosisC violaceum infection was diagnosed as per the results of pathogen culture from the infection site.InterventionsHe was treated with piperacillin/tazobactam (3.375 g/12 h iv) and levofloxacin (0.5 g/24 h iv) for 5 days.OutcomesThe patient showed good response to therapy and was discharged on day 18 after wound healing.LessonsC violaceum rarely infects humans. When an infection is suspected, samples should be immediately sent for microbial culture. Timely treatment on the basis of drug sensitivity test results can prevent further complications.Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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