A rare case report of mandibular condyle metastasis of renal pelvic and ureteral cancer

Abstract

Oral metastasis in renal pelvic and ureteral cancer is very rare. We report a case of metastasis of renal pelvic and ureteral cancer to the mandibular condyle. A 70-year-old man was referred to our department because of pain in the right temporomandibular joint. Panoramic radiography showed a diffuse radiolucent lesion in the right mandibular condyle, then computed tomographic scans and magnetic resonance images revealed a poorly marginated mass lesion. The patient had been diagnosed earlier with left renal pelvic and ureteral cancer at the department of urology in our hospital. We performed an open biopsy of the right mandibular condyle, and urologists performed a left total nephroureterectomy to exclude a diagnosis of double cancer. Both pathological findings suggested that the oral lesion was metastatic squamous cell carcinoma from the renal pelvis. The patient received palliative chemotherapy, however, the primary tumor and generalized metastasis could not be controlled.