Mastoid Cavity Myiasis In A Child: A Case Report

摘要

Myiasis is a disease caused the larvae of the Diptera or two-winged flies. There are only sporadic reports in the literature concerning human ear myiasis. A case of aural myiasis in a child operated for unsafe chronic suppurative otitis media is being reported. Five live maggots and a dead fly was removed from the external auditory canal and the mastoidectomy cavity Introduction Myiasis (from the Greek myia, “fly”), is the invasion of wounds and body tissues of humans and animals by the larvae of the Diptera or two-winged flies, which, at least for a certain period, feed on the host’s dead or living tissue1. The Calliphorinae contain the generae Lucilia, Calliphora, Cordylobia, and Auchmeromyia . Several species of Lucilia including L. cuprina and L. sericata are the sheep blowflies that are facultative ectoparasites. Their larvae infest and feed on the living tissues of warm-blooded vertebrates, particularly the domestic sheep2. Cases of human ear myiasis recorded in the literature are not numerous and there are only sporadic reports from various countries of the world3,4. A case of aural myiasis in a child operated for unsafe chronic suppurative otitis media is being reported. Case Report A 10 year old male child presented in the outpatient department of Pt. BDS PGIMS Rohtak with a history of pain and purulent, blood stained and foul smelling discharge from the left ear for one week duration. It was associated with intermittent headache, hearing impairment and tinnitus. There was no history of dizziness, vomiting, visual trouble or neurological deficit. Past history revealed that the child was a diagnosed case of chronic suppurative otitis media and has undergone modified radical mastoidectomy two months back. Family history revealed that the child belonged to rural background and he had three brothers and one sister. On examination, the patient was afebrile pulse was106 per minute and B.P was 110/70 mm of Hg. Otorhinolaryngological examination revealed blood stained discharge in the left external auditory canal (EAC), it was cleaned and live maggots were noticed (Fig1).