A Case of Transverse Colon Cancer with Adult Intestinal Malrotation

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  • MAEDA Chiyo
    Digestive Disease Center, Showa University Northern Yokohama Hospital
  • HIDAKA Eiji
    Digestive Disease Center, Showa University Northern Yokohama Hospital
  • UCHIDA Tsuneyuki
    Digestive Disease Center, Showa University Northern Yokohama Hospital
  • OMOTO Tomokatsu
    Digestive Disease Center, Showa University Northern Yokohama Hospital
  • ISHIDA Fumio
    Digestive Disease Center, Showa University Northern Yokohama Hospital
  • KUDO Shin-ei
    Digestive Disease Center, Showa University Northern Yokohama Hospital

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Other Title
  • 腸回転異常症に併存した横行結腸癌の1例
  • 症例 腸回転異常症に併存した横行結腸癌の1例
  • ショウレイ チョウ カイテン イジョウショウ ニ ヘイソン シタ オウコウ ケッチョウ ガン ノ 1レイ

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Abstract

A 48-year-old man with transverse colon cancer was admitted to our hospital. Computed tomography (CT) colonography showed a severe deformity in the transverse colon, and the small bowel on the right and the large bowel on left in the abdominal cavity. CT angiographic findings suggested that the artery feeding the tumor was the middle colic artery (MCA), which branched to the left of the superior mesenteric artery. The diagnosis was a transverse colon cancer with non-rotation type of malrotation. The patient underwent partial colectomy with lymph node dissection and appendectomy. The MCA, feeding artery of the tumor, was running under the superior mesenteric vein. The right branch of the MCA was ligated for D2 lymph node dissection. The tumor was finally diagnosed as tub2, pSS, pN0, ly0, v0, and fStage II.<BR>Proximal (right-sided) colon cancer with intestinal malrotation has a high rate of superior mesenteric artery and superior mesenteric vein anomalies. It is important to understand vessel anomalies on CT angiography before surgery.

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