A rare case of primary choriocarcinoma in the sigmoid colon

Table 1 Summary of antitumor drug sensitivity test results

Agent (μg/mL)	T/C
5-FU (1.0)	53.34%
Gemcitabine (0.03)	58.47%
Docetaxel (0.1)	56.07%
Epirubicin (0.1)	58.47%
Cisplatin (0.2)	UD
5-FU/SN38 (1.0/0.03)	65.85%
5-FU/OHP (1.0/0.5)	46.85%

The culture drug sensitivity test method was employed to study in vitro growth inhibition. The in vitro sensitivity is expressed as the T/C ratio, where T is the total volume of living cancer cells in the treated group, and C is the total volume of living cancer cells in the control group. 5-FU: 5-fluorouracil; SN38: The active metabolite of irinotecan; OHP: Oxaliplatin; UD: Undetectable because of the limited number of cells.