Table 1.

Reported cases of ectopic decidua of the appendix

Author [reference no.]	Year	Number of patients	Patient age (years)	Gestational age (weeks)	CRP at diagnosis (mg/L)	Accompanying glands
Zaystev [9]	1987	1	33	29	NA	NA
Suster [8]	1990	6	18–40	26–40	NA	NA
Silvestrini [11]	1995	1	28	21	NA	Present
Lesaffer [12]	2009	2	19, 23	19, 24	NA	Present in 2
Chai [10]	2016	4	22–36	20–26	NA in 2, 12, < 5	NA
Murphy [13]	2016	1	31	18	9.6	Present
Noor [14]	2019	7	19–39	NA	NA	Present in 5, absent in 2
Tsunemitsu [15]	2020	1	35	33	NA	Present
Our case	2020	1	39	27	41.3	Absent

CRP C-reactive protein, NA not available