A Case of a Peritoneal Loose Body with the Maximum Diameter of 50 mm

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  • 最大径50mmの腹腔内遊離体の1例
  • 症例 最大径50mmの腹腔内遊離体の1例
  • ショウレイ サイタイケイ 50mm ノ フクコウ ナイ ユウリタイ ノ 1レイ

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A 65-year-old man was admitted to our hospital because of a pelvic tumor detected on abdominal ultrasonography during a medical checkup. Abdominal contrast-enhanced CT and MRI scans showed a 50-mm sized tumor suggestive of a teratoma on the ventral aspect of the urinary bladder in the pelvic cavity. Since a possibility of malignancy could not be ruled out, we decided to perform surgery. The tumor showed no mobility during preoperative examinations. Although laparotomy was performed by lower abdominal incision, no tumor could be detected in the pelvic space. However, an X-ray study performed after the operation showed a tumor with calcification at the left side of the abdomen. A peritoneal loose body of 50 mm in maximum diameter was immediately removed by reoperation.<BR>Peritoneal loose bodies with the maximum diameter of 50 mm or more are very rare. And there have been few cases which could be diagnosed before operation. Although some reports indicated the usefulness of laparoscopy as a diagnostic tool, our knowledge of typical radiological findings and the characteristic feature of movement of the tumor can lead to be proper diagnosis and avoid unnecessary operation even in asymptomatic cases.

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