Airway Management 1 Airway Obstruction 1 Case Report 1 Cricoid Cartilage Emergencies 1 Emergency Medicine 1 Hoarseness 1 Humans 1 Laryngeal Neoplasms 1 Larynx 1 Malaysia 1 Male 1 Middle Aged 1 Point-of-Care Systems 1 Preoperative Period 1 Respiratory Sounds 1 Stridor 1 Thyroid Cartilage 1 Tracheostomy 1 Ultrasonography 1 abnormal respiratory sound 1 airway obstruction 1 case report 1 cricoid cartilage 1 diagnostic imaging 1 echography 1 emergency 1 hoarseness 1 human 1 larynx 1