What unusual complication may arise from a mastoidectomy?

A mastoidectomy is a surgical procedure that involves the removal of infected air cells from the mastoid bone, typically to treat chronic ear infections or complications arising from them. One of the uncommon but significant complications associated with this procedure is facial nerve paralysis.

The facial nerve runs in close proximity to the mastoid bone, and during the surgery, it can be inadvertently injured or become edematous (swollen) due to surgical manipulation or inflammation. This can lead to the temporary or, in rare cases, permanent paralysis of the facial muscles on the affected side of the face. Symptoms of facial nerve paralysis can include drooping of the mouth, inability to close the eye, and a lack of facial expression on one side.

While the other complications listed, such as infection, hearing loss, and balance issues, can occur with a mastoidectomy and may be more common, they do not exemplify the unusual nature of this specific complication. Facial nerve paralysis stands out as a significant potential consequence of this procedure, warranting close monitoring during and after surgery.