The case of a 47-year-old patient with a nasal dorsum cyst excised via external rhinoplasty is described. The lesion was diagnosed as a mucous cyst. Only ten cases of mucous cysts on the nasal dorsum have been published to date, all having developed post rhinoplasty. To our knowledge, ours is the first case that is not associated with rhinoplasty. The external rhinoplasty approach permits better exposure and complete excision of the nasal dorsum masses, and offers good esthetic results.