Oral myiasis in an adult associated with filariasis and Hansen's disease

Management of Oral Myiasis Caused by Chrysomya bezziana - A Case Series

Myiasis is a rare disease caused by infestation of tissue by larvae of flies. Oral myiasis is still rare and unique owing to the fact that the oral cavity rarely provides a necessary habitat for a larval life cycle. We discuss the definition, etiology, predisposing factors, classification, and management of myiasis. We hereby report a rare case of oral myiasis in a 75-year-old female with a history of maxillofacial trauma. She complained of pain in the lower lip and commissure region on the left side through which numerous live maggots (larvae) were seen crawling out. Postremoval of approximate seventy maggots resulted in lower lip defect along its commissure which was repaired by Bernard's modification of Gillies flap. Another case was an 18-year-old girl, a known case of congenital cerebral palsy with pain and swelling in the upper vestibule region. Prevention of myiasis involves addressing open wounds, maintaining good oral and personal hygiene, control of fly population, basic cleanliness of surrounding areas, and provision for basic sanitation and health education.

Oral myiasis: Analysis of cases reported in the English literature from 1990 to 2020

Myiasis is an infection caused by the deposition of fly larvae in tissues, and its involvement in the human oral cavity is uncommon. Herein, we have performed a data analysis of published cases of oral myiasis. A search was performed in PubMed, Ovid, Web of Science, Scopus, and LILACS. Geographic distribution, demographic data, associated factors, clinical features, fly types, treatment, and presence of sequelae were analyzed. A total of 122 articles reported the cases of 157 infected individuals. The most affected countries were India (41%) and Brazil (29.5%). Male predominance (67.5%) and a mean of 41.9 years of age were observed. The gingiva (29%) was the most affected site, followed by palate (25%) and lip (21%). There were different forms and combinations of treatments: manual removal of larvae and surgical debridement, application of asphyxiating substances, antibiotic therapy, and use of ivermectin. The condition predominantly affects individuals with neurological and/or locomotor disabilities, of low socioeconomic status, with poor oral hygiene and chemical dependence and individuals with previous injuries or with the absence of lip sealing. The establishment of a standard treatment protocol, enabling comparison in future studies and providing uniformity in treatment strategies offered by health services is strongly recommended.

Oral Myiasis: A Rare Case Report and Literature Review

Myiasis is a rare disease caused by infestation of tissue by larvae of flies. Oral myiasis is still "rare" and "unique" owing to the fact that oral cavity rarely provides the necessary habitat for a larval lifecycle. Herein, we present a case of extensive gingival myiasis in a 12-year-old mentally retarded, epileptic child as well as a literature review.

Oral Myiasis Caused by Chrysomya bezziana in Anterior Maxilla

Oral myiasis is a rare pathology and is associated with poor oral hygiene, alcoholism, senility, suppurating lesions, and severe halitosis. It arises from invasion of body tissues or cavities of living animals by maggots or larvae of certain dipterian flies. It is mostly reported in developing countries and in the tropics. We hereby report a rare case of oral myiasis in a 70-year-old female with extensive necrotic oral lesion burrowing into the hard palate through which numerous live maggots (larvae) and seen emerging out and discuss the definition, etiology, predisposing factors, classification, and management of the same. Furthermore, the life cycle of the causative organism in the present case, that is, Chrysomya bezziana, has also been discussed.