Nasal myiasis (Scholeiasis)
DEFINITION :
Infestation of nose by Maggots = larval form of blue bottle fly (Chrysomyia speci...
TREATMENT :
• Endoscopic removal of maggots with forceps
• Nasal irrigation with dilute chloroform
• Nasal packing using r...
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Nasal myasis

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Published on: Mar 3, 2016
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Transcripts - Nasal myasis

  • 1. Nasal myiasis (Scholeiasis) DEFINITION : Infestation of nose by Maggots = larval form of blue bottle fly (Chrysomyia species) AETIOLOGY : 1. Atrophic Rhinitis 2. Leprosy, Syphilis 3. Large roomy nasal cavity following removal of nasal polyps/rhinosporidiosis 4. Following surgery for Ca Maxilla 5. Post radiotherapy for Ca maxilla 6. Purulent sinusitis 7. Poor Hygiene 8. Poor Nutritional Status PATHOPHYSIOLOGY • Flies lay egg in nasal cavity eggs hatch into larvae (200 in 24hrs) Superadded bacterial infection PNS invaded by maggots (larvae cause destruction of nose, nasopharynx, paranasal sinus, soft tissue of face, palate, eyeball) LIFE CYCLE • Eggs (8-24hrs) Larvae (4-7days) Pupa (10 to 20 days) Adults CLINICAL FEATURES : • Intense nasal irritation, sneezing, lacrimation, headache for first 3 days after infestation • Nasal obstruction • Nasal Pain, puffy eyelids & lips • Foul smelling nasal discharge • H/O crawling sensation in nose (fornication) • H/O maggots coming out of nasal cavity (after 3 to 4 days) • Fistulae on nose / palate • Death may occur from meningitis ON EXAMINATION • Maggots seen crawling out • Cellulitis of nose and face • Fever, malaise, headache, toxemia
  • 2. TREATMENT : • Endoscopic removal of maggots with forceps • Nasal irrigation with dilute chloroform • Nasal packing using ribbon gauze soaked in turpentine oil for 24 hrs, alternatively we can use Turpentine oil and chloroform (4:1) BD before attempted removal. Maggots come out due to suffocation. • Nasal douching with normal saline QID to remove slough, crusts, dead maggots. • Nasal instillation of liquid paraffin for lubrication • Isolation with mosquito net to avoid contact with flies • Antibiotics to control secondary infection • Maintenance of nasal hygiene

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