What does Mycobacterium chelonae cause?

What does Mycobacterium chelonae cause?

M chelonae most commonly causes infection of the skin and skin structures where infections can be classified as a localized cellulitis, as a subcutaneous abscess, or as disseminated disease.

Which mycobacterium can cause pulmonary disease?

Nontuberculous mycobacteria (NTM) are organisms commonly found in soil and water in many parts of the world. The great majority of NTM lung disease in the U.S. is caused by Mycobacterium avium complex (MAC).

Is Mycobacterium chelonae contagious?

Patients with M chelonae infections are not contagious and should not be isolated.

What is chelonae infection?

  Mycobacterium chelonae is an atypical, rapidly growing mycobacterial organism that causes skin infections in immunocompetent patients. Infection typically follows trauma such as tattooing, piercing, surgery, liposuction, or subcutaneous injections.

What are the symptoms of Mycobacterium?


  • Cough.
  • Weight loss.
  • Coughing up blood or mucus.
  • Weakness or fatigue.
  • Fever and chills.
  • Night sweats.
  • Lack of appetite and weight loss.

How is MAC lung disease diagnosed?

MAC lung disease diagnosis includes a clinical exam, a chest x-ray or CT scan and a lab culture of sputum from your lungs. MAC lung disease treatment usually involves a combination of antibiotics taken over an extended period of time.

Where is Mycobacterium chelonae found?

chelonae is ubiquitous in the environment and has been found in soil, water, and aquatic animals. M. chelonae grows optimally at 30-32 °C and may have a long incubation period. It is commonly associated with skin and soft tissue infections, especially infections of the extremities (cellulitis, abscessus).

What is tap water bacillus?

M gordonae is referred to as the tap water bacillus because it is a frequent isolate in tap water. M gordonae is ubiquitous and may be found in soil, water (eg, ground, tap, bottled), whirlpools, unpasteurized milk, mucous membranes of healthy persons, urine, and gastric fluid.

Can a pulmonary infection be caused by Mycobacterium chelonae?

Infections may also be associated with ophthalmic surgery (LASIK) or contact lens wear-related keratitis. Pulmonary infections by M. chelonae are less common than with M. abscessus.

What are the CT features of Mycobacterium chelonae?

Bronchiectasis, nodules, and consolidation are the most common CT features of M. chelonae pulmonary infection. Cavities are less common. These CT findings resemble those reported for Mycobacterium avium complex. In this study, M. chelonae pulmonary infection occurred exclusively in middle-aged and older women.

Who are the patients with m.chelonae?

In this study, M. chelonae pulmonary infection occurred exclusively in middle-aged and older women. Nontuberculous mycobacterial species, although still relatively uncommon pathogens, have become increasingly recognized as significant causes of chronic human pulmonary infections in nonimmunocompromised individuals.

Where can you find nontuberculous mycobacterial lung disease?

These germs are found in the water and soil and are common throughout the environment as a whole. They usually do not cause illness. The term ‘nontuberculous’ is used to differentiate these disorders from the mycobacterium that cause tuberculosis (i.e. mycobacterium tuberculosis complex).

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