Esophageal myoepithelial carcinoma: Four case reports

Table 1 Clinical and pathological factors of four esophageal myoepithelial carcinoma patients

Case	1	2	3	4
Sex	M	M	M	F
Age (year)	57	60	79	81
Complaint	Dysphagia	Dysphagia	Dysphagia	Retrosternal discomfort
Location	Middle	Middle	Middle	Lower
Depth	Muscle layer	Submucosa	Whole layer	Whole layer
Size (cm)	4.5 × 4.0 × 1.2	3.0 × 2.0 × 1.5	3.5 × 2.8 × 2.0	2.9 × 1.7 × 0.7
Tumor marker	TAP (+)	TAP (+)	Normal	Normal
Node involvement	+	–	–	–
Cytology	MC + SCC	MC + SCC	MC	MC
Therapy	R	R	R	R
Follow up	Died from unknown cause	Lost to follow-up	Anastomosis recurrence and lung metastases	NED

F: Female; M: Male; MC: Myoepithelial carcinoma; SCC: Squamous cell carcinoma; TAP: Tumor abnormal protein; R: Radical surgery; NED: No evidence of disease +, yes/present/positive; –: No/absent/negative.