What is the clinical presentation of Pseudomonas GI infections?

Updated: Dec 17, 2018
  • Author: Selina SP Chen, MD, MPH; Chief Editor: Russell W Steele, MD  more...
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GI infections

  • Pseudomonal infections can affect the entire alimentary canal, from the oropharynx to the rectum. The clinical presentation is often indolent, except for occasional NEC (in premature infants), typhlitis, hemorrhagic and necrotic ulcers, and abscesses in infants, older children, and adults. Skin manifestations can occur.

  • NEC presents with irritability, signs of dehydration, vomiting, diarrhea, dehydration, abdominal distension, and signs of peritonitis.

  • Diarrheal epidemics can present with mild-to-severe diarrhea, signs of dehydration, and vascular collapse. Pseudomonal infections have also been causally associated with Shanghai fever, a syndrome associated with diarrhea or constipation, rash, and fever persisting as long as 1-2 weeks.

  • The pathological changes observed in patients with typhlitis range from localized lesions in the cecum to necrosis and gangrene with perforation and peritonitis.

  • Although rare, rectal abscesses can spread to the scrotum and penis, leading to Fournier gangrene.

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