Chest plain CT, or chest sweep CT, examines the chest and is not comprehensive for the throat; laryngeal CT or laryngoscopy is needed to check for throat problems. Chest CT mainly examines the chest, including the lungs, ribs, mediastinum, and chest wall. However, in the case of the throat, the upper part of the chest CT scan sometimes shows the hypopharynx or a part of the larynx, which is not a comprehensive view. If you need to identify lesions in the larynx, you will need a CT scan of the larynx or a laryngoscopy. CT laryngeal examination can detect the presence of lumps in the larynx and lymph nodes in the neck, but cannot detect inflammation in the larynx. Laryngoscopy can detect inflammation of the larynx, polyps and nodules in the vocal cords, pyriform fossa of the larynx and epiglottis. If you need to clarify the throat problems, you need to consult a doctor and complete the relevant examinations under the guidance of the doctor to clarify the condition.