Appendiceal Crohn’s disease clinically presenting as acute appendicitis

Table 1 Summary of the patients with appendiceal Crohn’s disease

Case No.	Sex	Age (yr)	c/c	SD	Clinical impressions	AFB	Tb-PCR
1	F	30	RLQ pain	None	Acute appendicitis	Negative	Negative
2	M	38	RLQ pain	14 d	Acute appendicitis	Negative	Negative
3	M	26	RLQ pain	None	Acute appendicitis	Negative	Negative
4	M	28	RLQ pain	7 d	Acute appendicitis	Negative	Negative
5	F	25	RLQ pain	14 d	Acute appendicitis	Negative	Negative
6	F	29	RLQ pain	7 d	Acute appendicitis	Negative	Negative
7	M	51	RLQ pain	5 mo	Acute appendicitis, perforation	Negative	Negative
8	F	49	RLQ pain	8 d	Acute appendicitis	Negative	Negative
9	M	30	Abdominal pain	10 d	Acute appendicitis, perforation	Negative	Negative
10	M	23	Lower abdominal pain	2 d	Acute appendicitis	Negative	Negative
11	M	18	Lower abdominal pain, diarrhea	3 d	Acute appendicitis	Negative	Negative
12	F	11	RLQ pain	7 d	Acute appendicitis	Negative	Negative

F: Female; M: Male; c/c: Chief complaint; RLQ: Right lower quadrant; SD: Symptom duration; AFB: Acid-fast bacillus; Tb-PCR: Tuberculosis polymerase chain reaction.

Table 2 Summary of histologic features of appendiceal Crohn’s disease

Histologic features	Number of cases	%
Wall thickening	11/12	92
Transmural inflammation	12/12	100
Lymphoid aggregates	12/12	100
Epithelioid granuolmas	12/12	100
Mucosal ulceration	11/12	92
Crypt abscess	5/12	42
Perforation	2/12	17
Muscular hypertrophy	1/12	8
Neural hyperplasia	5/12	42
Perpendicular serosal fibrosis	8/12	67