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Revista Da Sociedade Brasileira de... 2020
Topics: Animals; Diptera; Larva; Myiasis
PubMed: 33206876
DOI: 10.1590/0037-8682-0110-2020 -
Revista Brasileira de Parasitologia... 2019Cochliomyia hominivorax (Coquerel, 1858), the New World screwworm, causes primary myiasis in wild and domestic animals in tropical and subtropical regions of Brazil.... (Review)
Review
Cochliomyia hominivorax (Coquerel, 1858), the New World screwworm, causes primary myiasis in wild and domestic animals in tropical and subtropical regions of Brazil. Although this species is considered to occur throughout the country, organized information about its recorded distribution has not been available until now. This article aimed to provide a comprehensive review of the historical and current data published on both immature (myiasis) and adult stages of C. hominivorax in Brazil. A total of 174 articles were found; of these, 141 articles reported myiasis cases in cattle (146 records), humans (68 records), and other mammalian hosts (40 records), and captures of adult flies were reported in 33 articles. C. hominivorax is widespread in Brazil, having been recorded in 208 municipalities in all major biomes of the country.
Topics: Animals; Brazil; Cattle; Diptera; Geography; Humans; Prevalence; Screw Worm Infection
PubMed: 31483031
DOI: 10.1590/S1984-29612019059 -
Ghana Medical Journal Sep 2020Myiasis is common in tropical regions, but now increasing incidence is seen in the west due to international travel. Otorhinolaryngological myiasis is uncommon and is...
INTRODUCTION
Myiasis is common in tropical regions, but now increasing incidence is seen in the west due to international travel. Otorhinolaryngological myiasis is uncommon and is seen in diabetics, alcoholics or patients unable in self-care.
OBJECTIVES
To study presentations of otorhinolaryngological myiasis, identify associated risk factors and species of flies causing myiasis.
METHODS
Clinical findings and co-morbidities of 67 myiasis cases were noted. Maggots were identified, manually removed, and patients were managed with topical treatment, systemic ivermectin and antibiotics.
FINDINGS
Thirty-three nasal myiasis, 13 aural myiasis and 5 patients with oral myiasis were noted. Seven patients with head neck wounds myiasis and nine patients of tracheostome myiasis were recorded.
DISCUSSION
Warm humid climate of tropical regions is a major concern along with co-existing conditions like poor sanitation, alcoholism, psychiatric diseases and neuropathies. Hesitancy is seen in attendants and health care professionals to deal with myiasis.
CONCLUSION
Awareness about risk factors is important in avoiding myiasis along with prompt treatment which reduces morbidity. Tracheostome myiasis is an under-documented entity rather than a rare presentation.
FUNDING
None.
Topics: Adolescent; Adult; Aged; Animals; Antiparasitic Agents; Child; Child, Preschool; Comorbidity; Diptera; Female; Humans; Infant; Infant, Newborn; Ivermectin; Larva; Male; Mental Disorders; Middle Aged; Myiasis; Otorhinolaryngologic Diseases; Screw Worm Infection; Treatment Outcome; Vulnerable Populations; Young Adult
PubMed: 33883762
DOI: 10.4314/gmj.v54i3.8 -
Oral Surgery, Oral Medicine, Oral... Nov 2017This study describes 9 cases of myiasis affecting the head and neck region and discusses the demographic distribution, treatment, clinical characteristics, and sequelae... (Review)
Review
OBJECTIVE
This study describes 9 cases of myiasis affecting the head and neck region and discusses the demographic distribution, treatment, clinical characteristics, and sequelae of the disease in light of the literature.
STUDY DESIGN
The study was performed in 2 steps. In the first part, 9 cases seen over a period of 10 years at the Emergency Department of Hospital da Restauração in Brazil were studied. In the second part, a literature search was performed in PubMed for articles on head and neck myiasis published from 1975 to March 2017.
RESULTS
The case series mainly consisted of male patients in their 30s. The palate was the most commonly affected site. Myiasis was caused by Cochliomyia hominivorax in all patients, who were treated by mechanical removal of the larvae and debridement of necrotic tissue, followed by oral ivermectin. All patients had sequelae resulting from bone destruction.
CONCLUSIONS
Head and neck myiasis generally affects individuals with poor hygiene habits, drug users, and individuals with neurologic and psychosocial disorders. The treatment of choice is mechanical removal of larvae and surgical debridement combined with oral ivermectin. This study provides information that could help clinicians in the diagnosis and management of this condition.
Topics: Administration, Oral; Adult; Aged; Animals; Antiparasitic Agents; Brazil; Debridement; Female; Head; Humans; Ivermectin; Male; Middle Aged; Myiasis; Neck; Risk Factors
PubMed: 28822697
DOI: 10.1016/j.oooo.2017.06.120 -
Turkiye Parazitolojii Dergisi May 2022Dermatological cases caused by myiasis make up approximately 20% of travel diseases. Ocular involvement occurred in approximately 5% of these myiasis cases. The...
Dermatological cases caused by myiasis make up approximately 20% of travel diseases. Ocular involvement occurred in approximately 5% of these myiasis cases. The conjunctival involvement of () larvae, which is the active agent in most ocular infestation cases in humans, causes external ophthalmomyiasis. External ophthalmomyiasis was diagnosed because of O. ovis first-stage larvae that were removed from the conjunctiva of three patients who applied to the Şırnak State Hospital Eye Clinic with complaints of foreign body sensation, burning, stinging, watering, and redness in the eyes and swelling of the eyelids in July and October. All symptoms of the patients disappeared within a few days after the removal of the larvae. Ophthalmomyiasis due to must be kept in mind in the differential diagnosis of patients presenting with similar eye complaints in areas where sheep and goat husbandry is performed intensely.
Topics: Animals; Diagnosis, Differential; Diptera; Eye Infections, Parasitic; Humans; Larva; Myiasis; Sheep
PubMed: 35604196
DOI: 10.4274/tpd.galenos.2022.03164 -
Yonsei Medical Journal Aug 2002To report a rare case of vulvar myiasis caused by Wohlfartia magnifica, including clinical and microscopic observations.
BACKGROUND
To report a rare case of vulvar myiasis caused by Wohlfartia magnifica, including clinical and microscopic observations.
CASE
A vulvar lesion was found in a 31-year old married female villager with the history of dropping fly larvae from vulva, vulvar pain and itching sensation. The larvae were identified as the species of Wohlfartia magnifica. The lesion was washed with batticon over a period of five days and the patient was discharged.
CONCLUSION
Vulvar myiasis should be considered in the differential diagnosis of genital lesions. The diagnosis can be easily established based on microscopic features of the maggots, especially those relating to stigma structures.
Topics: Adult; Female; Humans; Myiasis; Vulvar Diseases
PubMed: 12205748
DOI: 10.3349/ymj.2002.43.4.553 -
Ear, Nose, & Throat Journal Jul 2017Human myiasis is a parasitosis usually found in tropical and underdeveloped countries. It usually affects ulcerated lesions or devitalized tissues, developing after... (Review)
Review
Human myiasis is a parasitosis usually found in tropical and underdeveloped countries. It usually affects ulcerated lesions or devitalized tissues, developing after deposition of dipterous eggs. Patients with head and neck cancer are at risk to develop secondary myiasis. A representative percentage of those patients manifest with neglected and advanced tumors, usually in exposed areas and with necrotic tissues. Few case reports and small series constitute the available information about this parasitosis. Most studies have been conducted in patients with skin carcinomas, although myiasis has already been described in association with other head and neck malignancies. The authors present a series of 12 cases of myiasis secondary to head and neck cancer in addition to a literature review.
Topics: Aged; Aged, 80 and over; Female; Head and Neck Neoplasms; Humans; Male; Middle Aged; Myiasis
PubMed: 28719714
DOI: 10.1177/014556131709600704 -
The Tohoku Journal of Experimental... Jun 2005Myiasis is a disease caused by fly larvae. The term "myiasis" is derived from the Greek word "myia" meaning fly. Aural myiasis is a rare clinical state and occurs... (Review)
Review
Myiasis is a disease caused by fly larvae. The term "myiasis" is derived from the Greek word "myia" meaning fly. Aural myiasis is a rare clinical state and occurs frequently in children. In this article, six children with aural myiasis, caused by the fly larvae, are reported because of unusual presentation. All of the children with aural myiasis were associated with chronic otitis media. In the treatment, a combination of suctioning and alligator forceps was used to remove maggots under the light microscopic field. Additionally, antibiotics were used in all children. Thus, aural myiasis is successfully treated by direct extraction of larvae and application of preventative methods.
Topics: Animals; Child; Child, Preschool; Diptera; Ear; Female; Humans; Larva; Male; Myiasis; Otitis Media; Suction; Surgical Instruments
PubMed: 15888968
DOI: 10.1620/tjem.206.125 -
International Journal of Infectious... Jul 2020Parasitic infections of the eye are a major cause of ocular-surface diseases globally. While most infections are treatable, parasites can cause varying levels of damage...
INTRODUCTION
Parasitic infections of the eye are a major cause of ocular-surface diseases globally. While most infections are treatable, parasites can cause varying levels of damage mostly due to late diagnosis or misdiagnosis as a result of doctors' unfamiliarity with their characteristics of latency and crypsis, as well as lack of awareness by the patients.
CASE REPORTS
In this study, we present three cases of phthiriasis palpebrarum, thelaziasis, and ophthalmomyiasis, respectively. Two of the cases were treated at the clinic and did not recur. One patient refused treatment and was lost to follow-up.
DISCUSSION
By evaluating the natural histories, morphology, symptoms, clinical findings, and treatment of these parasitic diseases, we systematically analyzed several distinct and unique parasite characteristics, especially latency and crypsis. Furthermore, we have proposed specific examination techniques and methods as well as prevention and treatment strategies from these specific perspectives, aiming to prompt timely diagnoses and early interventions for these diseases by health care workers and improve the public's awareness of parasitic infections.
CONCLUSION
Parasitosis on the ocular surface is a global infectious disease, and prevention strategies include maintaining personal and environmental hygiene and limiting contact with animals. We recommend that health care workers should enhance their ability to detect and diagnose these diseases while promoting the public's awareness of them in the context of our new perspectives.
Topics: Aged, 80 and over; Animals; Child; Delayed Diagnosis; Diagnostic Errors; Eye Infections, Parasitic; Eyelashes; Female; Humans; Lice Infestations; Male; Middle Aged; Myiasis; Phthirus; Recurrence; Spirurida Infections; Thelazioidea
PubMed: 32447120
DOI: 10.1016/j.ijid.2020.05.061 -
Medicine Jan 2020Myiasis is a parasitic disease caused by fly larvae of the Diptera order that infest human and other vertebrate animal tissues. Orbital myiasis is a potentially... (Review)
Review
RATIONALE
Myiasis is a parasitic disease caused by fly larvae of the Diptera order that infest human and other vertebrate animal tissues. Orbital myiasis is a potentially destructive infestation of the orbital tissues, which may affect individuals with previous ocular diseases or disorders of consciousness.
PATIENT CONCERNS
A 72-year-old man presented with a complaint of repeated pain for two years after trauma to his right eyelid and aggravated symptoms with larvae wriggling out for 2 days. An orbital computed tomography scan revealed right eyeball protrusion and periocular soft tissue edema. Two days later, magnetic resonance imaging showed that the shape of the right eyeball was changed and that the normal structure of the eyeball could not be identified.
DIAGNOSES
Due to the patient's symptoms and imaging examination results, the diagnosis of orbital myiasis was made.
INTERVENTIONS
The patient was treated by exenteration of the right orbit, and all necrotic tissues and larvae were removed. The defect was repaired via reconstruction with a pedicled musculocutaneous flap from the forehead region. Antibiotics and tetanus toxoid therapy were utilized to prevent potential bacterial infection.
OUTCOMES
The patient recovered well postoperatively and was discharged uneventfully. During the 6-month follow-up period, the wound healed well.
LESSONS
Advanced age and untreated eye trauma are risk factors for orbital myiasis. Timely removal of larvae and elimination of infections are important measures for protecting the eyeball.
Topics: Aged; Animals; Diptera; Eye Enucleation; Female; Humans; Magnetic Resonance Imaging; Male; Myiasis; Orbital Diseases
PubMed: 31977893
DOI: 10.1097/MD.0000000000018879