A Case of Chemical Peritonitis Caused by a Ruptured Ovarian Teratoma

DOI 11 References
  • Tachizawa Natsuki
    Department of Radiology, St. Marianna University School of Medicine
  • Kobashi Yuko
    Department of Radiology, St. Marianna University School of Medicine
  • Hoshikawa Yoshikazu
    Department of Radiology, St. Marianna University School of Medicine
  • Nakajima Yasuo
    Department of Radiology, St. Marianna University School of Medicine
  • Niimi Hiroshi
    Department of Emergency and Critical Care Medicine, St. Marianna University School of Medicine

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  • 腹膜炎を呈した卵巣奇形腫破裂の１例

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A 34-year-old woman was admitted to our hospital with abdominal pain and pyrexia after labor. An abdominal CT examination revealed bilateral cystic tumors with fatty deposits and calcification in the pelvic region. The left tumor appeared to have collapsed, and perforation of the tumor capsule was suspected. Ascites and a thickened peritoneum, suggesting peritonitis, were also noted. In addition, an MRI examination revealed a fatty component located next to the left tumor. The sebaceous material that had spilled out of the tumor was considered. The patient was subsequently diagnosed as having chemical peritonitis caused by the rupture of a left ovarian teratoma. Enucleation and saline lavage was performed, and the patient recovered. Since teratoma is characterized by a well-formed, sturdy capsule, ruptures are rare. However, tumor rupture constitutes a medical and surgical emergency and has been associated with a high mortality, particularly in cases with acute rupture. We report a case in which typical CT and MRI findings enabled an accurate diagnosis.

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