Sentinel lymph node biopsies in early stage oral and oropharyngeal carcinoma: a retrospective single-centre experience |
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| Affiliation: | 1. Department of Oral and Maxillofacial Diseases, Helsinki University Hospital and University of Helsinki, PO Box 220, FI-00029 Helsinki;2. Department of Otorhinolaryngology, Head and Neck Surgery, Helsinki University Hospital and University of Helsinki, PO Box 263, FI-00029 Helsinki;3. Department of Pathology, Helsinki University Hospital and University of Helsinki, PO Box 400, FI-00029 Helsinki;4. Department of Oral and Maxillofacial Diseases, Helsinki University Hospital and University of Helsinki, PO Box 220, FI-00029 Helsinki;5. Department of Oral and Maxillofacial Diseases, Helsinki University Hospital, PO Box 220, FI-00029 Helsinki;1. Specialty Registrar in Anaesthetics: North Manchester General Hospital/Pennine Acute Hospitals NHS Trust, Delaunays Road, Crumpsall, Manchester, M8 5RB;2. Consultant Anaesthetist: North Manchester General Hospital / Pennine Acute Hospitals NHS Trust;3. Consultant OMFS/Head & Neck Surgeon: North Manchester General Hospital / Pennine Acute Hospitals NHS Trust;1. Department of Dermatology, Maoming People’s Hospital, Maoming, Guangdong, 525000, China;2. Department of Anesthesiology, Shantou Central Hospital, Shantou, Guangdong, 515041, China;3. Department of Plastic Surgery and Burn Center, The Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515041, China;1. UCL Division of Surgery & Interventional Science, Royal Free Hospital London;2. St Georges Hospital, London;3. University Hospital Southampton;4. KDC Hospital, Kathmandu, Nepal;5. Shree Birendra Army Hospital, Nepal;1. Department of Oral and Maxillofacial Surgery, North Cumberland University Hospital, Carlisle, CA2 7HY;2. North Cumberland University Hospital, Carlisle, CA2 7HY |
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| Abstract: | The aim of this retrospective study was to analyse a consecutive series of patients with oral and oropharyngeal carcinoma who had had sentinel lymph node biopsy (SLNB) at our hospital during 2008-2017. A total of 70 patients with clinically and radiologically confirmed primary oral (n = 67) or oropharyngeal (n = 3) carcinoma, with no signs of metastatic lymph nodes preoperatively (clinically N0) were included. Patients’ clinical and personal data, characteristics of the tumours, sentinel lymph node (SLN) status and outcomes were recorded. Eight patients had invaded SLN. Two patients with clear sentinel lymph node biopsies had recurrences in the cervical lymph nodes with no new primary tumour as origin. The negative predictive value (NPV) and sensitivity for SLNB were 97% and 80%, respectively. The depth of invasion was an individual predictor for cervical lymph node metastasis (p = 0.043). Single photo emission computed tomography (SPECT) detected fewer SLN in patients with invaded lymph nodes than in patients with clear lymph nodes (p = 0.018).Our data support the use of SLNB as a minimally invasive method for staging the cervical lymph nodes among patients with cN0 oral and oropharyngeal carcinoma. Our results further confirm that greater depth of invasion is associated with cervical lymph node metastases. |
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| Keywords: | Sentinel lymph node biopsy cervical lymph node oral carcinoma oropharyngeal carcinoma neck dissection invasion metastasis |
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