Abstract
BackgroundPerforation of low-grade appendiceal mucinous neoplasms (LAMN) is characterized by its potential to spread mucin into peritoneal cavity, giving rise to pseudomyxoma peritonei, commonly treated with cytoreductive surgery and hyperthermic intraperitoneal chemotherapy.Symptoms of intestinal obstruction and appendiceal infection are rare at early stages of the disease, while abdominal distension are observed in the later stages due to mucin spread.MethodsWe report herein a case of LAMN with atypical symptoms in a 35-year-old woman with abdominal symptoms evoking an intestinal obstruction.ResultsAn abdominal CT scan revealed an ileo-caecal intussusception. An exploratory laparotomy and examination of the peritoneal cavity ruled out an exteriorization of mucin and the bowel was resected.ConclusionsThe pathology analysis confirmed the diagnostic of LAMN. This report aims to raise awareness among surgeons, of rare clinical presentations that LAMN may show, to adapt the surgical treatment to these patients and assign them to referral centers.
Highlights
Perforation of low-grade appendiceal mucinous neoplasms (LAMN) is characterized by its potential to spread mucin into peritoneal cavity, giving rise to pseudomyxoma peritonei, commonly treated with cytoreductive surgery and hyperthermic intraperitoneal chemotherapy
An abdominal CT scan revealed an ileo-caecal intussusception through the left transverse colon (Figure 1, panels A, B with a target sign, arrow) caused by an appendicular mucocele filled with mucin, presenting parietal calcification (Figure 1, panel C, arrow)
An exploratory laparotomy and examination of the peritoneal cavity ruled out an exteriorization of mucin and the bowel was resected
Summary
Perforation of low-grade appendiceal mucinous neoplasms (LAMN) is characterized by its potential to spread mucin into peritoneal cavity, giving rise to pseudomyxoma peritonei, commonly treated with cytoreductive surgery and hyperthermic intraperitoneal chemotherapy. We report a case of 35-year-old female patient with no medical history presented to the emergency department with acute vomiting and abdominal pain.
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