Postherpetic Pseudohernia: you can’t diagnose it if you’ve never heard of it…

18 Dec

Pseudohernias:pseudohernia2

a limited protrusion of the abdominal wall, without structural defect

Causes include:

  • diabetic radiculoneuropathy,
  • Lyme disease,
  • polymyositis,
  • reactivation herpes zoster.

 
Mechanism:

Classically, reactivation herpes zoster infection affects sensory nerve roots

however, it may extend to motor involvement, which can include paresis of diaphragmatic, upper and lower limb, or abdominal musculature.

 

Natural History:pseudohernia1

Symptoms of abdominal wall pseudohernia typically occur within 2 weeks of the rash and typically include an abdominal bulge in the region of the affected dermatome.

Typically, patients have a good prognosis, with resolution of symptoms within 18 months

 

Submitted by K. Sullivan.

 

References: Postherpetic Pseudohernia, Annals of Emergency Medicine July 2012

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