ABSTRACT
Myiasis, an infestation caused by dipteran larvae, commonly known as maggots, is one of the most common parasitic skin disorders in the tropical regions. Authors report a case of cutaneous myiasis caused by Dermatobia hominis (Diptera: Oestridae) in a Polish traveller returning from a self-organized trip to South America. Species biology, prophylaxis, and medical implications of this tropical parasitosis are discussed.
Subject(s)
Diptera , Myiasis , Travel , Myiasis/diagnosis , Myiasis/parasitology , Humans , Animals , Poland , South America , Male , Larva , Adult , Middle AgedABSTRACT
A 75-year-old man with type 2 diabetes and a history of previous empyema surgery was admitted to our hospital due to difficulty moving caused by chronic obstructive pulmonary disease and dehydration. During the first two days of hospitalization, intestinal myiasis was diagnosed after maggots were found in his diapers. After the maggots disappeared, he developed a fever, prompting antibiotic therapy for a suspected secondary infection, resulting in clinical improvement. Despite thorough home cleaning, no flies or maggots were found, and the source of infection and the fly species remained unknown. Recent reports suggest a higher prevalence of myiasis among the elderly, even with overall improvement in hygiene. While myiasis is typically mild, it is a condition that requires consideration in an aging society. Myiasis is a disease that should be considered in the differential diagnosis of the elderly, especially in people who are bedridden or frail.
Subject(s)
Diabetes Mellitus, Type 2 , Myiasis , Male , Animals , Humans , Aged , Anti-Bacterial Agents/therapeutic use , Myiasis/diagnosis , Myiasis/drug therapy , Diagnosis, Differential , LarvaSubject(s)
Eye Infections, Parasitic , Myiasis , Animals , Humans , Eye Infections, Parasitic/diagnosis , Eyelids , Larva , Myiasis/diagnosisABSTRACT
A German Shepherd dog was presented to a referral practice for screwworm myiasis affecting the ear. The successful management involved killing the larvae with afoxolaner plus milbemycin oxime and using video otoscopy to completely remove dead larvae. To the best of our knowledge, this is the first case report of auricular myiasis by Chrysomya bezziana in a dog in Singapore and the first report of video otoscopic management of myiasis.
Subject(s)
Diptera , Dog Diseases , Myiasis , Screw Worm Infection , Animals , Dogs , Screw Worm Infection/diagnosis , Screw Worm Infection/therapy , Screw Worm Infection/veterinary , Singapore , Myiasis/diagnosis , Myiasis/veterinary , Larva , Dog Diseases/diagnosisABSTRACT
BACKGROUND: Sarcophagidae is one of the main fly families that is attracted to open wounds, ulcers, lesions, and other injuries for depositing their larvae. The presence of larvae of flies in human tissues makes myiasis. Myiasis on the scalp could be more frightening in comparison with myiasis on the other parts of the body. It is a rare myiasis case that shows the ability of myiasis agents to attack various parts of the body. On the other hand, reporting of myiasis cases by Sarcophagidae larvae is not common due to difficulties in their identification. This study aimed to emphasize the importance of Sarcohagidae larvae in producing myiasis by describing the first case of soft tissue sarcoma infestation and provides a review of human myiasis by larvae of the Sarcophagidae family during 2010-2023 and also a review of wound myiasis cases associated with malignancy during 2000-2023. CASE PRESENTATION: A case of sarcoma cancer myiasis is reported on the scalp of a 43-year-old man who referred to one of Tehran's hospitals for surgical treatment of cancer. Before surgery, insect larvae were observed in the area of ââsarcoma. The larvae were isolated, examined morphologically, and identified as Sarcophaga spp. CONCLUSIONS: Myiasis has been considered as a neglected disease. Publishing of myiasis cases could be useful to alert health policy-makers about its danger and appearance in the community. It is not usual but can be expected even on the scalp of the human head. Exact daily supervision and dressing of the wound could be recommended to prevent cutaneous myiasis.
Subject(s)
Myiasis , Sarcoma , Male , Animals , Humans , Adult , Scalp , Iran , Myiasis/complications , Myiasis/diagnosis , LarvaABSTRACT
Cases of genitourinary myiasis in humans caused by larvae of flies are reported from time to time. In our study, 11 patients, who reported worms in their urine and brought these worms to our laboratory, were investigated. The larvae were found to belong to the subfamily Psychodinae. By taking urine samples carefully from the patients, examining and evaluating their history, it was concluded that they did not actually have myiasis. We endeavour to describe the pitfalls in this diagnosis.
Subject(s)
Myiasis , Psychodidae , Animals , Humans , Myiasis/diagnosis , LarvaSubject(s)
Myiasis , Humans , Animals , Myiasis/diagnosis , Skin , Africa South of the Sahara , Larva , TravelABSTRACT
Introduction: Myiasis is an infestation of humans or animals by larval forms of brachycetes. Commonly observed locations are otolaryngological and cutaneous. Gastrointestinal localization remains exceptional. In this work, we report the observation of a Moroccan case of gastrointestinal myiasis caused by Drosophila melanogaster. Observation. The patient was a 56-year-old man living in a rural region of northwest Morocco. He was being followed at the National Oncology Institute in Rabat for pulmonary and renal adenocarcinoma and was put on neo-adjuvant chemotherapy with concomitant radiochemotherapy. The patient presented vomiting twice containing about forty small white, circular and hairless worms measuring 4 mm in length. This sample was sent to the parasitology and mycology laboratory for identification. Microscopic study of the larvae and adult flies obtained after rearing in the laboratory of parasitology allowed the diagnosis of myiasis caused by Drosophila melanogaster. Discussion/Conclusion: This observation is noteworthy for both its exceptional anatomical localization and the implicated parasite species.
Subject(s)
Drosophila melanogaster , Myiasis , Animals , Humans , Male , Middle Aged , Larva , Morocco , Myiasis/diagnosisABSTRACT
Myiasis is an ectoparasitic infestation caused by larvae of arthropods in the group Diptera. Cutaneous myiasis is the infection of skin and includes the following types: furuncular, migratory and wound myiasis. Out of all the organisms responsible for this disease, Wohlfahrtia vigil is the most common causative agent in Pakistan, usually seen from June to September with nearly all presentations occurring at a young age. In our case, a patient without a history of trauma, skin erosion or animal exposure has a unique presentation of cutaneous myiasis. Here, an effort was made to treat a 15- year-old otherwise healthy female with a multisegmented treatment modality. A follow up visit was conducted every three days for three months at the end of which a 60% decrease in the size of the open wound was observed.
Subject(s)
Diptera , Myiasis , Animals , Humans , Female , Adolescent , Scalp , Myiasis/diagnosis , Myiasis/therapy , Myiasis/parasitology , Diptera/parasitology , Larva , SkinABSTRACT
Myiasis in humans is a disease caused by larvae of various fly families. It mainly occurs in communities with poor sanitation and low socioeconomic status. Meanwhile intrahospital or nosocomial myiasis represents a rare phenomenon but is of relevance to public health. Here, we report an outbreak of myiasis caused by Cochliomyia macellaria in five patients hospitalized for several diseases at the Service of Internal Medicine of the Hospital Regional Universitario de Colima, Mexico during June and July 2021. Three patients were males and two were females, aged 37 to 83 years. All were affected by myiasis caused by larvae of the fly C. macellaria. Three patients underwent invasive mechanical ventilation; one had cutaneous basal cell cancer and one had advanced diabetic foot. This event occurred after 4 days of hospitalization and in the same hospital pavilion. Two patients died, and the others were discharged after treatment with antibiotics and ivermectin. We believe that this nosocomial cluster represents a more frequent phenomenon than reported in tropical countries, where authorities should pay attention to its timely detection, especially in vulnerable populations.
Subject(s)
Cross Infection , Diptera , Myiasis , Male , Animals , Female , Humans , Calliphoridae , Mexico/epidemiology , Cross Infection/epidemiology , Myiasis/epidemiology , Myiasis/diagnosis , Larva , Hospitals , Disease OutbreaksABSTRACT
Muscoid larvae were observed on self-medicated dressing material loaded with purulent material taken from a 91-year-old hospital patient. These larvae were identified as Lucilia sericata. However, no larvae were found in the patient's tissues. The observation of larvae on dressings should not automatically lead to a diagnosis of cutaneous myiasis.
