Abdominal Cocoon: Preoperative Diagnostic Clues from Radiologic Imaging with Pathologic Correlation
Jin Hur1,
Ki Whang Kim2,
Mi-Suk Park1 and
Jeong-Sik Yu1
1 Department of Diagnostic Radiology, Yonsei University College of Medicine,
Research Institute of Radiological Science, Yongdong Severance Hospital
#146-92, Dogok-Dong, Kangnam-Gu, Seoul 135-270, South Korea.
2 Department of Diagnostic Radiology, Yonsei University College of Medicine,
Research Institute of Radiological Science, 134 Shinchon-dong, Seodaemoon-Ku,
Seoul 120-752, South Korea.

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Fig. 1A. 34-year-old women with abdominal cocoon. Abdominal sonogram
shows large echogenic mass associated with small amount of ascites in left
lower abdomen.
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Fig. 1B. 34-year-old women with abdominal cocoon. CT scan of lower
abdomen shows clustered gas-containing small-bowel loops with thick
membranelike sac (arrowheads) and dilated proximal small bowel with
airfluid levels due to intestinal obstruction.
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Fig. 1C. 34-year-old women with abdominal cocoon. Barium
follow-through radiograph shows ileal loops (arrows) bunched and
confined in lower abdomen and pelvis, giving rise to extrinsic mass effect on
encased small-bowel loops.
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Fig. 2A. 47-year-old man with abdominal cocoon. CT scan of mid abdomen
shows cluster of jejunal loops sacculated in thin, delicate, membranelike sac
(arrows) that occupies right mid abdomen.
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Fig. 2B. 47-year-old man with abdominal cocoon. Barium follow-through
radiograph reveals fixed cluster of jejunal loops (arrowheads) that
maintains constant position in right middle abdomen.
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Copyright © 2004 by the American Roentgen Ray Society.