Renal cell carcinoma metastasis to the oral cavity is rare. Significantly, the oral lesion in this case was the first indication of a malignant disease in the patient. This case underscores the importance of detailed history taking, interpretation of clinical finding, and high index of suspicion for metastatic disease to the oral cavity.
Keywords: Guillain‐Barre syndrome; metastasis; oral cavity; renal cell carcinoma.
© 2020 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.