1/6. Oral myiasis by screwworm Cochliomyia hominivorax.We report a rare case of periodontal myiasis by New World screwworm Cochliomyia hominivorax, an obligatory larval parasite, in a 66-year-old woman. The myiasis occurred in the anterior upper jaw associated with a pre-existent generalised periodontitis. About 40 larvae were removed from the lesion. One week later the periodontal tissues were healing normally and the patient was referred to a periodontist. As all of the larvae were in the last stage, they were probably deposited 5-7 days before. ( info) |
2/6. Orbital myiasis in a patient with a chronically exposed hydroxyapatite implant.We describe the clinical presentation of the first case, to our knowledge, of myiasis in an orbit with an exposed hydroxyapatite implant. We examined a 10-year-old boy with an 8-year exposure of an orbital implant. He had an infestation with maggots. The implant and the worms were surgically removed, allowing the socket to heal by secondary intention. The patient was able to wear a prosthesis 2 weeks later. The parasites were identified as belonging to Cochliomyia hominivorax, a fly responsible for the majority of cases of myiasis in the Western hemisphere. ( info) |
3/6. myiasis in a wounded soldier returning from panama.An imported case of traumatic myiasis occurred in a soldier wounded during military action in panama in December 1989 and evacuated to Brooke Army Medical Center, Fort Sam Houston, texas. At the medical center, five larvae were removed from the scalp wound, reared to the adult stage, and identified as Cochliomyia hominivorax (Coquerel). Though this was the only reported case of wound myiasis of the 254 servicemen evacuated for medical treatment, this incident indicates a potential mechanism for the reintroduction of C. hominivorax into the united states. ( info) |
4/6. Otolaryngic manifestations of myiasis.Although rare in north america and europe, myiasis is seen occasionally in tropical and undeveloped countries. This disorder results from the penetration of a fly larva into a part of the human body, and it causes various symptoms in the host. The exposed areas of the skin are the ones predominantly affected and the eyes, ears, nose, and paranasal sinuses are less commonly affected. We review our experience with 12 patients with myiasis of the ears, nose, and paranasal sinuses. ( info) |
5/6. Nosocomial nasal myiasis.Sixty-five fly maggots were retrieved from the nasal cavity of an unconscious 64-year-old man who had been admitted 18 days earlier with diabetic hyperosmolar coma. The larvae were identified as Cochliomyia macellaria, an organism commonly associated with myiasis in the united states. The clinical time sequence indicates that this infection was acquired in the hospital. This incident provides further evidence that immobile and debilitated patients are at risk to acquire myiasis. ( info) |
6/6. An unusual nosocomial infection: nasotracheal myiasis.A number of fly maggots were found emerging from the nose and tracheostomy site of an 82-year-old woman who had been in a coma for two months in an acute care hospital in a large Canadian city. This case history indicates that the infestation was hospital-acquired and although undoubtedly an extremely rare occurrence, at least in canada, points out the risk of myiasis in the unconscious, debilitated patient. ( info) |