1.Bleeding: It is mainly blood in the aspiration, often a small amount of blood at the beginning, which is easy to be ignored, and when the amount of bleeding is more, the lesion is often in the middle or late stage.
2.Headache: Headache can be found in the early stage, and it is mostly to one side and intermittent; in the late stage, there is persistent and severe headache, which can be easily mistaken for neurological migraine.
3. Swollen lymph nodes in the neck: lumps appear on one or both sides of the neck, characterized by painlessness, hardness and poor mobility, which are often mistaken for lymphatic tuberculosis or lymphadenitis.
4. Unexplained tinnitus, stuffy ears or hearing loss.