Primary malignant mucosal melanoma of the nasopharynx: an unusual cause of unilateral hearing loss.

There are many causes of unilateral hearing loss, and making the correct differential diagnosis, especially in elderly patients, is difficult. A primary malignant mucosal melanoma of the nasopharynx is extremely rare and can cause a variety of symptoms. Hearing loss, as a presenting symptom of mucosal malignant melanoma of the nasopharynx, has not yet been defined in the literature. Herein, we report a case of primary mucosal malignant melanoma of the nasopharynx presented with unilateral hearing loss in a 70-year-old man.