Contralateral lymph node metastasis of a previously-treated oral squamous cell carcinoma without neck lymph node metastasis-a rare situation deserves attention

• Yi-Hua Sun,
• Chih-Yuan Fang,
• Bey-Rong Guo,
• Kuan-Chou Lin

Affiliations

Yi-Hua Sun

Department of Oral and Maxillofacial Surgery, Wanfang Hospital, Taipei Medical University, Taipei, Taiwan

Chih-Yuan Fang

Department of Oral and Maxillofacial Surgery, Wanfang Hospital, Taipei Medical University, Taipei, Taiwan; School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan

Bey-Rong Guo

Corresponding author. Division of Oral Medicine, Department of Dentistry, Wan Fang Hospital, Taipei Medical University, No. 111, Sec. 3, Xinglong Rd., Wenshan Dist., Taipei 116081, Taiwan.; Department of Oral Medicine, Wanfang Hospital, Taipei Medical University, Taipei, Taiwan

Kuan-Chou Lin

Corresponding author. Division of Oral and Maxillofacial Surgery, Department of Dentistry, Wan Fang Hospital, Taipei Medical University, No. 111, Sec. 3, Xinglong Rd., Wenshan Dist., Taipei 116081, Taiwan.; Department of Oral and Maxillofacial Surgery, Wanfang Hospital, Taipei Medical University, Taipei, Taiwan; School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan