To determine whether the swelling of external auditory canal is a tumor or not is mainly through physical examination, preliminary judgment by auxiliary examination, and clear diagnosis by histopathological examination.
1. Physical examination: if the observation of the swelling indicates smoothness, clear boundary, more anterior base, texture, no invasion of surrounding tissues, etc., it may be benign swelling with these symptoms; on the contrary, if the swelling indicates vesiculobullousness, unclear boundary, non-smooth texture, invasion of surrounding tissues, it may be malignant tumor.
2. Auxiliary examination: CT and MRI of the temporal bone can be performed, mainly to observe the location and size of the invasion of the mass, if there is obvious invasion of the surrounding tissues and the range is large, it may be a malignant tumor.
3. Pathological examination: it is the gold standard for determining the benign or malignant nature of the swelling, and it is also the main examination method, which can clarify the nature of the swelling.
Therefore, when the swelling of external auditory canal is found, it needs to be diagnosed and treated under the guidance of professional doctors.