Whether CT can detect sinus cancer depends on whether the sinus cancer is early, advanced or intermediate stage. Early or ultra-early stage of sinus cancer is actually generally difficult to detect by CT. However, for mid-stage or partial early stage lesions, if a mass is formed and has not yet led to bone destruction, CT examination can be of great help in detecting soft tissue masses, and its enhancement characteristics can be seen when enhanced, which is relatively obvious. And for sinus cancer, necrosis can occur in the center due to excessive growth rate, all of which can be helped to diagnose sinus cancer by CT.