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Review Question - QID 218156

THA Trunnionosis Etiology The adverse reaction to metal debris generation may result in an aseptic lymphocyte-dominant vasculitis association lesion (ALVAL; also referred to as pseudotumor) similar to that seen in metal-on-metal hips  QID: 218156 (SBQ21RCN.85)
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QID 218156 (Type "218156" in App Search)
A 72-year-old female presents with worsening hip and groin pain after undergoing a total hip arthroplasty (THA). She gets a metal artifact reduction sequencing (MARS) MRI which reveals a large fluid collection within and adjacent to the joint capsule. She ultimately undergoes a revision THA from which the removed femoral stem is shown in Figure A. Chronic inflammatory tissue is carefully debrided prior to placing new implants. In this setting, which of the following cells depicted in figures B-F most likely mediated this patient’s immune response resulting in the chronic inflammation seen intra-operatively and on her MRI?
  • A
  • B
  • C
  • D
  • E
  • F
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  • A
  • B
  • C
  • D
  • E
  • F