A case of primary dedifferentiated liposarcoma of the ileum

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  • 回腸原発脱分化型脂肪肉腫の1例
  • 症例 回腸原発脱分化型脂肪肉腫の1例
  • ショウレイ カイチョウ ゲンパツ ダツブンカガタ シボウ ニクシュ ノ 1レイ

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Abstract

An 80-year-old woman was admitted due to a large mass in the pelvic cavity found on ultrasonography screening. Abdominal CT scan showed two masses in the pelvic cavity : one was a ventral mass, approximately 10 cm in diameter, containing both solid material and fat ; the other was a dorsal mass, 15 cm in diameter, containing mostly fat. A pelvic liposarcoma was diagnosed, and surgery was performed. During surgery, elastic, xanthochromatic, and smooth surface tumors were found 30 cm and 55 cm from the terminal ileum ; they were poorly demarcated from the wall of the ileum. On pathology, a low-grade, dedifferentiated liposarcoma arising from the ileum was diagnosed. A dedifferentiated liposarcoma arising from the intestine is rare. This is only the fifth case of large or small intestine liposarcoma reported in Japan and only the third small intestine case reported in Japan. We report this case of primary dedifferentiated liposarcoma of the ileum together with a literature review.

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