Rare histological subtype of invasive micropapillary carcinoma in the ampulla of Vater: A case report

Table 1 Clinicophathological findings of reported case of invasive micropapillary carcinoma of the ampulla of Vater

Case	Ref.	Age (yr)	Sex	Micropapillary component (%)	Lymph node metastasis	MUC1 staining	Survival (mo)	Status
1	Khayyata et al[8], 2005	79	M	> 80	19/32	N/A	N/A	N/A
2		71	M	> 80	0/4	N/A	10	Dead
3		41	M	> 50	2/3	+	6	Dead
4		71	M	> 50	2/9	N/A	9	Dead
5		62	M	> 50	0/3	+	25	Dead
6		67	M	> 50	1/1	+	8	Dead
7		76	F	20-50	4/17	N/A	N/A	N/A
8		61	M	20-50	0/9	+	70	Dead
9	Fujita et al[9], 2010	53	M	Almost area	13/16	N/A	20	Dead
10	Rodriguez et al[10], 2018	71	M	60	< 4	N/A	11	Dead
11	Present case, 2020	80	M	60	5/13	+	6	Alive

N/A: Not applicable; MUC1: Mucin1.