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Circumferential Zig‐Zag Pattern Suggesting a Superficial Origin of Colorectal Cancer
Author(s) -
SATO Shuichi,
NAGASAKO Kou,
TAKAHASHI Yoshie,
OKA Motoko,
SUZUKI Asako,
WON Jongsung,
ISHII Fumi,
IIZUKA Bunei,
FUJIMORI Takahiro
Publication year - 1994
Publication title -
digestive endoscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.5
H-Index - 56
eISSN - 1443-1661
pISSN - 0915-5635
DOI - 10.1111/j.1443-1661.1994.tb00371.x
Subject(s) - medicine , colorectal cancer , lesion , cancer , cancer stage , pathology
The early stage of colorectal cancer is divided into two morphological types polypoid and superficial. What percentage of advanced cancer is derived from the polypoid or superficial type is a matter of concern. The ratio of superficial variety among of ulcerated cancers was studied using those 2 cm or less in diameter, which often retain mucosal cancer. The existence of horizontal growing mucosal cancer at the marginal area of ulcerated cancer is a hallmark showing the lesion being of superficial origin. Eight (57 %) out of the 14 cases of ulcerated cancer, 2 cm or less, had this finding. This suggests that more than half of smaller colorectal cancers are of superficial origin. A zig‐zag pattern (ZZP) was evident in 3 cases of superficial origin. No cases in the nonsuperficial group had the ZZP. The existence of circumferential ZZP during colonoscopic observation indicates that the cancer is of superficial origin.