Stage IV malignant transformation of mature cystic teratoma palliatively treated with concurrent chemoradiotherapy: A case report

Figure 1 Computed tomography and magnetic resonance imaging findings. A-C: Computed tomography revealed right hydronephrosis, a 6-cm solid cystic mass with fat and calcification densities, and multiple nodules in the lungs (orange circles); D-F: Magnetic resonance imaging showed that the tumor was adhering to the uterus and rectum. There was suspected dissemination near the right ureter (orange circle).

Figure 2 Pathological diagnosis using endoscopic ultrasound-guided fine-needle biopsy was squamous cell carcinoma.

Figure 3 Timeline of this case. CCRT: Concurrent chemoradiotherapy.