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Updated: Aug 1, 2026

In Vitro Scratch Assay to Demonstrate Effects of Arsenic on Skin Cell Migration
Published on: February 23, 2019
Vinod Kumar Mannelli1, Manoj P Rai1, Divyesh Reddy Nemakayala2
1Department of Internal Medicine, Michigan State University, Lansing, Michigan, USA.
Abstract:
Mycobacterium chelonae is a rapidly growing mycobacterium which is known to respond well to standard antibiotic treatment regimen. There are no specific guidelines for treatment. Antibiotics are chosen based on the bacterial sensitivity. Here we present a 47-year-old man with hip replacement who developed bright red papular generalised skin lesions and bilateral hip abscess. On workup, it was confirmed that M. chelonae was the causative organism. He was given 8 weeks of antibiotics; however, there was worsening of the hip abscess on interval imaging. The progression was most likely due to M. chelonae developing antibiotic resistance. Physicians should be aware of the rising resistance of this organism, and guide antibiotic therapy based on bacterial sensitivity to yield better outcomes.
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