Transillumination sometimes provides information on the condition of the maxillary and frontal sinuses. Endoscopic examination of the nose and the sinuses with the telescope is the most reliable ...
LANZHOU, Oct. 21 (Xinhua) -- A man surnamed Zhang from northwest China's Xinjiang Uygur Autonomous Region was diagnosed with maxillary sinus cancer in May, with a 6.2-cm-diameter tumor expanding ...
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