The patient was a 68-year-old woman with limited mouth opening. The patient had a medical history of urinary bladder cancer, which recurred with bilateral metastases to the tibia. She presented with marked swelling around the left temporomandibular joint region. Panoramic radiography and magnetic resonance imaging (MRI) revealed extensive osteolysis of the left condylar process. MRI also showed a soft tissue mass around the distracted condylar process. Needle biopsy was performed. The histopathological diagnosis was transitional epithelial cancer. The final diagnosis was metastatic urinary bladder cancer in the temporomandibular joint region. Radiation therapy was performed for bilateral bone metastases of the tibia, pelvis minor, and the left temporomandibular joint. She died 10 months presentation.
