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Published on: July 21, 2023
Recurrent spontaneous small bowel perforations with a rare pathology: non-familial visceral myopathy
Meiyi Shi1, Young Mee Choi2, Elizabeth Kiselak3
1Department of Surgery, Hackensack University Medical Center, Hackensack, New Jersey, USA meiyi.shi@hmhn.org.
Abstract:
Visceral myopathy is a rare, often misdiagnosed disease characterised by abnormalities in the gastrointestinal smooth muscle layer. Its clinical presentation includes pseudo-obstruction, intestinal dysmotility and spontaneous perforation. We report an atypical case of a 51-year-old man with a history of recurrent small bowel perforations who presented with an acute abdomen. A laparotomy was performed with identification of a distal jejunal perforation. A small bowel resection with end-to-end anastomosis was done. Minimal adhesions were seen intraoperatively despite the patient's multiple prior surgeries. Pathology showed histiocytic inflammation and patchy loss of the muscle layer reflective of visceral myopathy. Genetic testing revealed a variant of uncertain significance in the myosin light chain kinase gene. It is difficult to make a conclusive diagnosis given the patient's clinical presentation closely mimicking other gastrointestinal disorders. However, it is crucial to consider visceral myopathy in patients with recurrent spontaneous intestinal perforations as a differential diagnosis.
Insights
Visceral myopathy, a rare gastrointestinal disorder, can cause recurrent intestinal perforations. Early consideration is vital for accurate diagnosis and management of this challenging condition.
Area of Science:
- Gastroenterology
- Rare Diseases
- Surgical Pathology
Background:
- Visceral myopathy is a rare gastrointestinal disorder affecting smooth muscle.
- It often presents with non-specific symptoms like pseudo-obstruction and dysmotility.
- Misdiagnosis is common due to overlapping symptoms with other GI conditions.
Observation:
- A 51-year-old man with a history of recurrent small bowel perforations presented with acute abdomen.
- Laparotomy revealed a distal jejunal perforation, treated with resection and anastomosis.
- Pathology showed histiocytic inflammation and muscle layer loss, indicative of visceral myopathy.
Findings:
- The patient's presentation mimicked other gastrointestinal disorders, complicating diagnosis.
- Genetic testing identified a variant of uncertain significance in the myosin light chain kinase gene.
- Histopathological findings strongly suggested visceral myopathy.
Implications:
- This case highlights the importance of considering visceral myopathy in patients with unexplained recurrent intestinal perforations.
- Accurate diagnosis of visceral myopathy is crucial for appropriate patient management.
- Further research into the genetic basis and diagnostic criteria for visceral myopathy is warranted.
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