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Apple core sign in colorectal cancer

  • 01-07-2017
  • Classics in Abdominal Imaging
Published in:

Excerpt

The apple core sign was originally described on barium enemas as an ab rupt, irregular, and segmental stenosis with “shouldered margins” in colonic wall [13]. This sign represents a non-distensible narrowing of the intestinal lumen by a stenosing circumferential colorectal cancer that allows passage of only a small amount of contrast media. The appearance is similar to an apple core, that is, the remnant of a partially eaten apple (Fig. 1). The apple core sign is also known as “napkin ring sign” [1, 2].
Fig. 1
An apple core
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Metadata
Title
Apple core sign in colorectal cancer
Authors
Eduardo Kaiser Ururahy Nunes Fonseca
Cassia Franco Tridente
Renata Emy Ogawa
Fernando Ide Yamauchi
Ronaldo Hueb Baroni
Publication date
01-07-2017
Publisher
Springer US
Published in
Abdominal Radiology / Issue 7/2017
Print ISSN: 2366-004X
Electronic ISSN: 2366-0058
DOI
https://doi.org/10.1007/s00261-017-1085-8

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