In which condition X-Ray neck lateral view shows the thumb sign?

In which condition X-Ray neck lateral view shows the thumb sign?

کس حالت میں ایکس رے گردن کا لیٹرل ویو انگوٹھے کا نشان دکھاتا ہے؟
Explanation

In epiglottitis, the epiglottis appears swollen and enlarged (the thumb or thumbprint sign)