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<p>An 86-year-old woman presented with abdominal pain and ascites. Contrast-enhanced computed tomography revealed ascites, thickening of the greater omentum, mild peritoneal thickening, and a low-density tylosis-like cyst in the pelvic peritoneum. To achieve a definitive diagnosis, endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) of the ascitic fluid and peritoneal lesions was performed. Histopathological analysis of aspirated fluid and peritoneal biopsy specimens confirmed the diagnosis of peritoneal pseudomyxoma (PMP). In this case, EUS-FNA played a crucial role in accurately diagnosing PMP as the underlying cause of idiopathic ascites.</p>

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Diagnosis of peritoneal pseudomyxoma using endoscopic ultrasound-guided fine-needle aspiration

  • 期刊论文

  • 发表日期：

    2025年11月7日

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  • Mayu Kawabata,
  • Reiko Yamada,
  • Takamitsu Tanaka,
  • Kenji Nose,
  • Yoshifumi Nakamura,
  • Tetsuro Miwata,
  • Jyunya Tsuboi,
  • Hayato Nakagawa

摘要

An 86-year-old woman presented with abdominal pain and ascites. Contrast-enhanced computed tomography revealed ascites, thickening of the greater omentum, mild peritoneal thickening, and a low-density tylosis-like cyst in the pelvic peritoneum. To achieve a definitive diagnosis, endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) of the ascitic fluid and peritoneal lesions was performed. Histopathological analysis of aspirated fluid and peritoneal biopsy specimens confirmed the diagnosis of peritoneal pseudomyxoma (PMP). In this case, EUS-FNA played a crucial role in accurately diagnosing PMP as the underlying cause of idiopathic ascites.