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Minnesota Woman Sues After Surgeon Mistakenly Removes Kidney Instead of Spleen

The medical malpractice lawsuit against Allina Health and Dr. Devon Callahan seeks over $50,000 in damages following a 2022 surgical error that left the patient with kidney disease and dependent on dialysis.

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A Minnesota woman filed a lawsuit saying the wrong organ was removed during a 2022 surgery.

Overview

  • The lawsuit, filed on May 16, 2025, in Hennepin County, alleges medical battery and negligence after a March 2022 surgery at Abbott Northwestern Hospital resulted in the removal of the wrong organ.
  • Dr. Devon Callahan reportedly removed the patient’s left kidney instead of her infected spleen during an open laparotomy, according to court documents.
  • Post-operative complications left the patient hospitalized for nearly two months and caused Stage 5 kidney disease, requiring long-term dialysis treatment.
  • Allina Health has stated it reviewed the case with medical experts and intends to vigorously defend the care provided, while disputing the full accuracy of the court filings.
  • Dr. Callahan’s Minnesota medical license expired in 2023, but he holds an active California license with no reported disciplinary actions from either state’s medical boards.