Ectopic liver tissue on the gallbladder: A Preferred Reporting Items for Systematic Reviews and Meta-analyses guided systematic review

Table 2 Radiological, surgical, and histopathological findings in reported cases of ectopic liver tissue on the gallbladder

Ref.	Radiologic tools	Lesion sizes (mm)	Surgical procedure	Histopathological findings of ELT	Histopathological findings of gallbladder specimens
Emral[96]	US	10	LC	ELT	NA
Wan et al[99]	US + CT + MRI	15	Cholecystectomy (radical)	HCC	Chronic calculous cholecystitis
Jain et al[97]	NA	20	Cholecystectomy (which?)	ELT	Normal gallbladder
	CT	18	OC	ELT	Chronic calculous cholecystitis
Touati et al[98]	US	10	LC	ELT	Chronic calculous cholecystitis
Zhang and Zheng[3]	US	10	LC (3-port)	ELT	NA
Xu et al[4]	US + HIDA	9	LC	Steatohepatitis	Chronic calculous cholecystitis
	US	17	LC	ELT	Acute on chronic calculous cholecystitis
Imamura et al[5]	NA	10	LC	ELT	NA
Ferjaoui et al[6]	US	20	LC	ELT	Chronic calculous cholecystitis
Echeverry-Gutiérrez et al[7]	US	20	LC	ELT	NA
Zhang et al[28]	US	NA	LC	ELT	NA
Öğüt et al[29]	US	15	LC	No excise	Chronic calculous cholecystitis
Nakajima et al[17]	CT	10	OC	HCC	Necrotic cholecystitis
Hussein Al-Janabi et al[30]	US	10	LC	ELT	NA
	NA	13	LC	ELT	NA
Arora and Kalra[31]	US	NA	LC	ELT	Chronic calculous cholecystitis
Yildirim et al[32]	US	10	LC	ELT	Cholelithiasis + cholesterolosis
Hanaki and Miyatani[33]	CT	8	LC	ELT	Acute cholecystitis cholelithiasis
Goyal and Vikas[34]	US	NA	LC	ELT	Chronic calculous cholecystitis
Çağlar[35]	US	20	LC	ELT	NA
Sarı et al[36]	US	16	LC	ELT	NA
	ERCP	8	LC	ELT	NA
Rakka et al[37]	US	20	LC	ELT	NA
Moshref and Alotaibi[38]	US	12	LC	ELT	Chronic calculous cholecystitis
Healy and Harris[39]	Laparoscopy	NA	LC	Micronodular cirrhosis	NA
Kachi et al[9]	NA	5	LC	ELT	NA
	US	10	LC	ELT	NA
Avdaj et al[13]	US	NA	LC	ELT	NA
Akbulut et al[1]	CT + MRI	15	Donor hepatectomy	ELT	Normal gallbladder
	CT	NA	LT	Cirrhosis	Chronic calculous cholecystitis
Yüksel et al[40]	US	17	LC	ELT	Chronic calculous cholecystitis
Pandit et al[41]	US + MRCP	35	LC	ELT	NA
Mannan et al[42]	US	50	LC	ELT	NA
Isa et al[24]	US	NA	LC	ELT	NA
Granek et al[26]	US	19	LC	ELT	NA
Baral et al[43]	US	30	LC	ELT	NA
Topcu et al[14]	US	15	OC	ELT	NA
	US + CT + MRI	80	Whipple procedure	ELT	NA
Lodha et al[44]	US + CT	20	Lap nephrectomy	No excise	NA
Greenberg et al[45]	US + CT	30	LC	ELT	NA
Burke et al[46]	US	NA	LC	ELT	NA
Weber-Alvarez et al[15]	US	10	LC	ELT	Acute on chronic calculous cholecystitis
Termos et al[47]	US + CT	30	LC	ELT	NA
Galimov et al[48]	US	6	LC	ELT	Phlegmonous cholecystitis (cholelithiasis)
Yahya et al[49]	NA	NA	LC	ELT	NA
	US	NA	LC	ELT	NA
	US	60	LC	ELT	NA
	NA	NA	Diagnostic laparoscopy	ELT	NA
Mani et al[50]	CT	NA	LC	ELT	NA
Longjam et al[51]	US	12	LC	ELT	Chronic calculous cholecystitis
Leena[52]	Autopsy	15	Autopsy	NA	NA
Kostov and Kobakov[53]	NA	35	OC	ELT	Hydatid cyst on gallbladder wall
Karaca et al[10]	US	15	LC	ELT	NA
Jaboury[54]	NA	NA	LC	ELT	NA
Ito et al[19]	US + CT + MRI	15	LC	ELT	NA
Handra-Luca[55]	US	5	LC	ELT	Chronic calculous cholecystitis
	US	11	LC	ELT	Chronic calculous cholecystitis
Aslan and Akkas[56]	US	8	LC	ELT	NA
Yankol et al[57]	US + CT + MRCP	15	Donor hepatectomy	ELT	NA
Smyth et al[58]	US	20	LC	ELT	Chronic calculous cholecystitis
Hussein et al[59]	CT	NA	LC	ELT	NA
Bal et al[2]	US + ERCP	20	LC	ELT	Chronic calculous cholecystitis
Abhilash et al[60]	US	10	LC	ELT	Chronic calculous cholecystitis
Terakawa et al[61]	US + CT + MRCP	12	LC	ELT	NA
Pulle et al[62]	US	20	LC	ELT	Chronic calculous cholecystitis
Arslan et al[12]	US	20	LC	ELT	NA
Yajima et al[63]	US + CT	6	LC	ELT	NA
Sirasanagandla et al[64]	NA	20	Autopsy	ELT	NA
Öztürk et al[65]	US	20	LC	ELT	NA
Martinez et al[11]	US	30	LC	ELT	Chronic calculous cholecystitis
Khan et al[66]	NA	NA	LC	Fatty change	Chronic calculous cholecystitis
Hassan et al[67]	US	10	LC	ELT	Chronic calculous cholecystitis
Sözen et al[68]	US	8	LC	ELT	NA
Patel et al[69]	US	26	LC	ELT	NA
Karaman et al[25]	US	11	LC	ELT	NA
Mallya et al[100]	NA	15	Donor hepatectomy	ELT	NA
Nagar et al[70]	US + CT + MRCP	45	LC	ELT	Localized cholecystitis
Dettmer et al[71]	CT	15	LC	ELT	Acute cholecystitis cholelithiasis)
Catani et al[72]	US	15	LC	ELT	NA
	US	14	LC	ELT	NA
Ateş et al[73]	NA	15	LC	ELT	NA
	US	15	LC	ELT	NA
Triantafyllidis et al[21]	US	15	LC	ELT	Chronic calculous cholecystitis
Sánchez et al[74]	US	30	LC	ELT	NA
Kyeong et al[75]	CT	10	LC	ELT	Chronic calculous cholecystitis
Soto et al[76]	US	8	LC	ELT	NA (cholelithiasis)
Malhas et al[77]	US	NA	LC	ELT	NA
	US	NA	LC	ELT	NA
Koh and Hunt[78]	NA	15	LC	ELT	NA
Beltran et al[79]	US	17	LC	ELT	NA
	US + CT	7	OC + gastrectomy	ELT	NA
	US + CT	18	OC	ELT	NA
	US	12	LC	ELT	Chronic calculous cholecystitis
Wang and Liu[80]	US	11	LC	ELT	Chronic calculous cholesterol polyps)
Ngowe Ngowe et al[81]	US	30	OC	ELT	Chronic calculous cholecystitis
Ikeda et al[82]	US + CT	NA	OC + segment V resection	Steatohepatitis	NA
Lundy et al[83]	US + CT	30	LC	ELT	NA
Leone et al[16]	US + CT	90	OC	HCC	NA
Sakarya et al[84]	NA	NA	LC	NA	NA
Griniatsos et al[88]	US	10	LC	ELT	NA
	US	15	LC	ELT	NA
Acar et al[86]	US	14	OC	ELT	Papillary epithelial hyperplasia
Arakawa et al[23]	Autopsy	15	Autopsy	Alcoholic cirrhosis	NA
Hamdani and Baron[87]	US + CT + MRI	30	LT	ELT	NA
Ohbuchi et al[88]	US	5	LC	ELT	NA
Boyle et al[89]	US	20	OC	ELT	Chronic calculous cholecystitis
Watanabe et al[22]	CT	5	Diagnostic laparoscopy	Biliary microhamartoma	NA
	Laparoscopy	8	Diagnostic laparoscopy	NA	NA
	Laparoscopy	6	Diagnostic laparoscopy	NA	NA
	US + CT	10	Diagnostic laparoscopy	NA	NA
Tejada and Danielson[90]	US	11	OC + splenectomy	ELT	Chronic calculous cholecystitis
Fellbaum et al[91]	NA	5	OC	ELT	Chronic calculous cholecystitis
Natori et al[92]	CT	12	OC + excision	ELT	Chronic calculous cholecystitis
Ashby[93]	NA	10	OC + excision	ELT	NA
Bassis and Izenstark[94]	NA	8	Autopsy	ELT	NA
	NA	15	OC	ELT	Chronic calculous cholecystitis
	NA	10	OC	ELT	Chronic calculous cholecystitis
	NA	6	OC	ELT	Chronic calculous cholecystitis
Thorsness[95]	Autopsy	5	Autopsy	ELT	NA
Cullen[8]	NA	12	Excision	NA	NA
Our case 1	US + CT	25	LC	ELT	Chronic calculous cholecystitis
Our case 2	US + CT + MRI	8	Donor hepatectomy	ELT	Chronic calculous cholecystitis
Our case 3	US	13	LC	ELT	Chronic calculous cholecystitis

US: Ultrasonography; CT: Computed tomography; MRI: Magnetic resonance imaging; HIDA: Hepatobiliary iminodiacetic acid; ERCP: Endoscopic retrograde cholangiopancreatography; MRCP: Magnetic resonance cholangiopancreatography; NA: Not available; LC: Laparoscopic cholecystectomy; OC: Open cholecystectomy; LT: Liver transplantation; ELT: Ectopic liver tissue; HCC: Hepatocellular carcinoma.