case_images: PMC6304601_01
case_images: The gastrointestinal endoscopic finding at 16 weeks of gestation. Arrowheads indicate the recurrent lesion of esophageal cancer in the residual esophagus.
case_images: CRIOG2018-1280582.001.jpg
case_images: PMC6304601_01_CRIOG2018-1280582.001.jpg
case_images: fig1
case_images: At 16 weeks of gestation, the scheduled gastrointestinal endoscopy and biopsy revealed relapse of esophageal cancer in the residual esophagus (Figure 1).
case_images: The simulation study of radiotherapy using a phantom. (a) The irradiation plan was created based on the recurrent lesion. The distance between the inferior margin of irradiation and the uterine fundus was 38 cm. (b) Five dosimeters (arrows) were put on the phantom's abdomen. (c) The radiation dosage measured by five dosimeters in one irradiation fraction.
case_images: CRIOG2018-1280582.002.jpg
case_images: PMC6304601_01_CRIOG2018-1280582.002.jpg
case_images: fig2
case_images: We created the irradiation plan for the patient (Figure 2(a)) and delivered doses to the phantom (Figure 2(b)). According to the radiation dosage measured by five dosimeters, which ranged from 0.052 to 0.176 mGy in one irradiation fraction (Figure 2(c)), the fetal dose was estimated as 1.56 to 5.28 mGy, even after 60 Gy in 30 fractions of radiotherapy.
case_images: The time course of treatment. The horizontal axis indicates gestational weeks. CF, cisplatin 60 mg/m2, 5-fluorouracil 750 mg/m2; CS, cesarean section.
case_images: CRIOG2018-1280582.003.jpg
case_images: PMC6304601_01_CRIOG2018-1280582.003.jpg
case_images: fig3
case_images: The CRT consisted of 50.4 Gy in 28 fractions of radiation and four courses of chemotherapy (CDDP 60 mg/m2 on day 1, 5-FU 750 mg/m2 on days 1 to 4).  Figure 3 shows the course of treatment over time.