Association between white opaque substance under magnifying colonoscopy and lipid droplets in colorectal epithelial neoplasms

Table 1 Endoscopic and histologic characteristics of white opaque substance-positive and white opaque substance-negative lesions n (%)

		WOS-positive	WOS-negative	P value
		(81 lesions)	(48 lesions)
Size (mm), mean ± SD		32.8 ± 16.4	34.7 ± 18.3	0.51
Location	Right side of the colon	51 (63.0)	22 (45.8)	0.07
	Left side of the colon	30 (37.0)	26 (54.2)
Morphology	Protruded type	20 (24.7)	14 (29.2)	0.68
	Flat-elevated type	61 (75.3)	34 (70.8)
Histologic type	Adenoma	22 (27.2)	20 (41.7)	0.12
	HGD or carcinoma	59 (72.8)	28 (58.3)

WOS: White opaque substance; HGD: High-grade dysplasia.

Table 2 Immunohistochemical analysis of adipophilin expression in white opaque substance-positive and white opaque substance-negative lesions n (%)

		WOS-positive	WOS-negative	P value
		(81 lesions)	(48 lesions)
Adipophilin	Positive	77 (95.1)	33 (68.7)	0.0001
	Negative	4 (4.9)	15 (31.3)

WOS: White opaque substance.