[Myiasis: facial location. Apropos of a case of Dermatobia hominis infection].

Myiases constitute a parasitic disease always secondary to the presence of the larvae of certain insects, particularly diptera, in skin wounds ("cutaneous myiases") or in the body ("deep myiases") of man or vertebrates. Larvae or maggots are able to invade natural cavities and induce myiasis. They can invade the nasal fossae causing "nasomyiases", the eyes causing "ophthalmomyiases" and the ears causing "otomyiases". They can penetrate further, causing urinary tract "cystomyiases", vaginal or gastrointestinal myiases. They can invade the scalp or complicate surgical wounds "surgical myiases". These diseases are initially confused with other pathologies, but the discovery of a larva in one of these sites is a certain sign of myiases. When the diagnosis has been established, treatment is generally simple and cure is rapidly obtained.