Robotic wedge resection of a rare gastric perivascular epithelioid cell tumor: A case report

Table 1 Updated literature regarding cases of gastric perivascular epithelioid cell tumor

Ref., yr	No of cases	Age (yr), sex	Site of the lesion	Size (cm)	Treatment	Malignant criteria (Folpe’s classification[2])					IHC				Follow up
						Infiltrative growth pattern	Nuclear grade	Necrosis	Mitotic activity	Vascular invasion	HMB-45	Melan-A	SMA	Desmin
Mitteldorf et al[7], 2010	1	71, F	Antrum	3	Partial gastrectomy	-	Moderate	-	Low (1/50 HPF)	-	-	+	+	+	DF at 19 mo
Waters et al[8], 2012	1	42, M	Pylorus	10	Distal gastrectomy	NR	NR	NR	NR	NR	NR	+	NR	+	Liver met at diagnosis, death after 3 mo
Doyle et al[4], 2013	2	NR	NR	NR	Surgical resection	NR	NR	NR	NR	NR	NR	NR	NR	NR	NR
Wilson et al[9], 2013	1	74, F	Body	0.5	No surgery	NR	NR	NR	NR	NR	NR	NR	+	+	Multiorgan met at diagno-sis
Yamada et al[10], 2015	1	39, M	Body-lesser curvature	7.3	Lap wedge resection	+	High	+	High (> 2/50 HPF)	+/-	+	+	+	+	DF at 6 mo
Kumar et al[11], 2015	1	48, F	Antrumgreater curvature	11.5	Open distal gastrectomy	NR	High	+	High (20/10 HPF)	NR	-	+	+	NR	NR
Shin et al[12], 2017	2	62, F	Antrum	4.2	Lap wedge resection	-	Low	-	Low (1/50 HPF)	-	+	-	+	+	DF at 8 mo
		67, M	Fundus below the EGJ	5	Subtotal gastrectomy	-	High	-	High (45/50 HPF)	NR	-	+	+	-	DF at 7 yr
Toya et al[13], 2017	1	47, M	Upper body	4	ESD	+	High	+	High (> 1/50 HPF)	NR	+	+	+	+	Liver met at 6 mo
Current case	1	55, M	Fundus- below the EGJ	6.5	Robotic wedge resection	+	High	+	High (63/50 HPF)	+	+	-	NR	+	DF at 11 mo

IHC: Immunohistochemistry; HMB-45: Human melanoma black 45; SMA: Smooth muscle actin; F: Female; M: Male; HPF: High power fields; EGJ: Esophago-gastric junction; ESD: Endoscopic submucosal dissection; DF: Disease free; NR: Not recorded; met: Metastasis; Lap: Laparoscopic.