This study is aimed to compare different tools of endotracheal intubation in supine versus lateral position in patients with neck masses.

Primary outcome: is time taken for intubation.

Secondary outcomes:

• The success rate of first intubation trial.
• Hypoxia, Spo2 < 90%.
• Airway trauma like; dental and lip injury.

Inclusion Criteria:

• Patients with different neck masses undergoing thyroid and non-thyroid surgeries.
• Both genders.
• Patients > 18 years old.
• with the American Society of Anesthesiologists (ASA) physical status I or II.

Exclusion Criteria:

• Patients with spine deformities limiting lying supine or lateral.
• age under 18 years.
• with the American Society of Anesthesiologists (ASA) physical status III or IV

• Before randomization, we will record morphometric characteristics including the Mallampati score, mouth opening (inter-incisor distance in centimeters), and thyromental distance (with the head extended in upright position, in centimeters).
• Prediction of difficult intubation using Wilson score

data will be shared if asked upon reasonable request