Mr Nicholas Kalavrezos is a Head and Neck Reconstructive Surgeon with a background in Oral and Maxillo-Facial surgery. He is based at The Harley Street Clinic the University College London Hospital and The Princess Grace Hospital. He is also the Lead Head and Neck Sarcoma Surgeon for the London Sarcoma Service.He specialises in ablative and reconstructive surgery for the head and neck, with a clinical interest in the management of sarcomas. He also performs thyroid and facial trauma surgery, as well as scarless face lift treatment for salivary gland tumours.Mr Kalavrezos is a founding member of the Centre for Reconstructive Surgery at the University College London (UCL). He is actively involved in research into ‘tissue engineering bio-scaffolding at the Nanotechnology Laboratory of UCL. He is regularly invited to lecture at conferences nationally and internationally and is the Secretary General of the European Association for Cranio-Maxillofacial Surgery (EACMFS).Diseases, Medical Tests and TreatmentsExcision of Lesions of the Mouth, Tongue and GumHead and Neck Cancer SurgeryMicrovascular SurgeryOral ReconstructionThyroidectomyTooth ExtractionWisdom Teeth RemovalCancer of the Head, Neck, Mouth and TongueHead and Neck LumpsHead and Neck TumoursOral CancerSalivary Gland DiseaseThyroid CancerThyroid Disorders