Increased Mast Cell Counts and Degranulation in Microscopic Colitis

Table 6

Mast cell counts in fragments involved by inflammation.

	Mean percentage of involved fragments (range)	Mean highest count in lamina propria (range, number)
		<80% involvement	>80% involvement
CC ()	93% (63%–100%)	45 (31–59, 4)	38 (19–63, 25)
LC ()	89% (44%–100%)	22 (13–30, 8)	32 (17–42, 27)

vs. control (Student’s -test). CC: collagenous colitis; LC: lymphocytic colitis.