Table 1

ASMA expression in cases and controls, as assessed by immunohistochemistry

Case	Age (years)	Sex	Sample	ASMA expression
Case	Age (years)	Sex	Sample	Circular	Longitudinal
ASMA expression: +, present; –, absent or minimal; W, weak.
ASMA, α smooth muscle actin; large, large intestine; small, small intestine.
Case 1	41	F	Small	–	+
Case 2	28	F	Small	–	+
Case 3	54	F	Large	+	+
Control 1	83	M	Small	–	+
			Large	+	+
Control 2	88	F	Small	–	+
			Large	+	+
Control 3	69	F	Small	–	+
			Large	+	+
Control 4	75	M	Small	–	+
			Large	+	+
Control 5	85	F	Small	–	+
Control 6	79	M	Small	–	+
Control 7	88	F	Small	–	+
Control 8	78	F	Small	–	+
Control 9	40	F	Small	–	+
			Large	+	+
Control 10	50	F	Small	–	+
			Large	+	+
Control 11	50	M	Small	–	+
			Large	+	+
Control 12	83	F	Small	W	+
			Large	+	+
Control 13	72	F	Small	W	+
			Large	+	+
Control 14	48	M	Small	W	+
			Large	+	+
Control 15	47	F	Small	W	+
			Large	+	+