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Study | Microvascular pattern |
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Yao, 2013 [8] | Regular microvascular pattern | Closed- or open-looped with a uniform shape Homogeneous morphology Symmetrical distribution Regular arrangement |
Irregular microvascular pattern | Different shapes: closed-looped (polygonal), open-looped, tortuous, branched, bizarrely shaped Heterogeneous morphology Asymmetrical distribution Irregular arrangement |
Absent microvascular pattern | Subepithelial microvascular pattern is obscured Presence of a white opaque substance (WOS) |
|
ā | Microsurface pattern |
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Yao, 2013 [8] | Regular microsurface pattern | Shape of marginal crypt epithelium: uniform linear/curved/oval/circular structure Homogeneous morphology Symmetrical distribution Regular arrangement Regular WOS |
Irregular microsurface pattern | Shape of marginal crypt epithelium: irregular linear/curved/oval/circular structure Heterogeneous morphology Asymmetrical distribution Irregular arrangement Irregular WOS |
Absent microsurface pattern | No marginal crypt epithelial structure No WOS are visible |
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Yokoyama et al., 2010 [9] | Abnormal microvascular irregular superficial glandular pattern | Fine network pattern Corkscrew pattern Intralobular loop pattern-1 Intralobular loop pattern-2 |
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ā | Microvascular features | Fine mucosal structural features |
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Kaise et al., 2009 [10] | Dilation Abrupt caliber alteration | Absence |
Denseness Heterogeneity in shape | Micrification |
Tortuousness | Heterogeneity |
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Nakayoshi et al., 2004 [11] | Microvascular pattern | A fine network pattern A corkscrew pattern An unclassified pattern |
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