Treatment of gastric cancer with dermatomyositis as the initial symptom: Two case reports and review of literature

Table 1 Reported cases of dermatomyositis associated with gastric cancer

Ref.	Case, n	Sex	Age	Cancer diagnosis	Diagnostic method	Interval time (mo)	Metastasis	Prognosis
Our cases	2	F	67	After	Endoscopy	2	No	Survival
		F	67	After	Endoscopy	12	No	Survival
Pozharashka et al[8], 2020	1	M	58	After	CT	3	Yes	Death
Li et al[9], 2020	1	M	51	After	PET/CT	NA	Yes	NA
Shibata et al[10], 2019	1	M	71	Before	CT	9	Yes	Death
Nishikawa et al[11], 2016	1	M	70	Same time	CT	0	Yes	Death
Ge et al[12], 2014	2	M	57	After	Endoscopy	1	No	Survival
		M	66	After	Endoscopy	12	No	Survival
Yamaoka et al[13], 2014	1	F	64	After	CT	1	Yes	Death
Ito et al[14], 2013	1	M	59	After	CT	1	No	Survival
Nogi et al[15], 2012	1	F	59	After	Endoscopy	2	No	Survival
Asadi et al[16], 2010	1	M	58	After	Endoscopy	1	No	Survival
Kim et al[17], 2009	1	M	90	After	Endoscopy	60	No	Death
Castro et al[18], 2008	1	M	60	After	PET/CT	12	No	Death
Sugihara et al[19], 2002	1	M	60	After	Endoscopy	2	No	Survival
Nakaya et al[20], 2002	1	M	53	After	Endoscopy	56	No	Survival
Tonouchi et al[21], 2001	1	M	62	After	NA	5	No	Survival
Yamashita et al[22], 2001	1	M	59	After	Endoscopy	2	No	Survival

NA: Not available; PET: Positron emission tomography; CT: Computed tomography; F: Female; M: Male.