Journal of Veterinary Laboratory Research

Journal of Veterinary Laboratory Research

Case Report: Extensive Oral and Maxillofacial Myiasis Caused by Calliphoridae Larvae in a Boxer Dog

Document Type : Original Article

Authors
Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran
10.22075/jvlr.2026.37708.1166
Abstract
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Myiasis is a parasitic disease caused by the invasion of fly larvae into the living tissues of animals. Although this condition is more commonly observed in soft tissues and open wounds, involvement of the oral cavity is exceedingly rare due to the region's defense mechanisms, including the presence of saliva, a relatively constant pH range of approximately 7.5, high vascularity, and the continuous movements of the tongue.
This study reports the case of a 5-year-old male Boxer dog exhibiting severe clinical manifestations in the oral cavity, including deep ulcers, ptyalism, hematemesis, and anorexia. Clinical examination revealed extensive infestation of the anterior regions of both the maxilla and mandible with fly larvae. Parasitological and morphometric examinations of the larvae confirmed that the specimens belonged to the family Calliphoridae.
In this case report, feeding on food waste contaminated with fly eggs or larvae, along with the pre-existing presence, existence, of periodontal diseases which create favorable, suitable, conditions for the establishment and growth of larvae, were identified as predisposing factors. This report emphasizes the necessity for thorough oral examinations in dogs with poor oral hygieneThough rare, oral myiasis must be considered in differential diagnoses for extensive necrotic lesions to prevent major tissue destruction.
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Abdo, Evandro Neves, Augusto César Sette-Dias, Cláudio Rômulo Comunian, Carlos Eduardo Assis Dutra, and Evandro Guimarães de Aguiar. 2006. “Oral Myiasis: A Case Report.” Medicina oral, patologia oral y cirugia bucal 11(2): E130-1.
Aguiar, A M M, C O Enwonwu, and F R Pires. 2003. “Noma (Cancrum Oris) Associated with Oral Myiasis in an Adult.” Oral diseases 9(3): 158–59. doi:10.1034/j.1601-0825.2003.03942.x.
Bhatt, A P, and A Jayakrishnan. 2000. “Oral Myiasis: A Case Report.” International journal of paediatric dentistry 10(1): 67–70. doi:10.1046/j.1365-263x.2000.00162.x.
Bhoyar, S C, and Y C Mishra. 1986. “Oral Myiasis Caused by Diptera in Epileptic Patient.” Journal of the Indian Dental Association 58(12): 535–36.
Bozzo, L, I A Lima, O P de Almeida, and C Scully. 1992. “Oral Myiasis Caused by Sarcophagidae in an Extraction Wound.” Oral surgery, oral medicine, and oral pathology 74(6): 733–35. doi:10.1016/0030-4220(92)90399-b.
Catts, E, and Gary Mullen. 2002. “Myiasis (Muscoidea, Oestroidea).” In Medical and Veterinary Entomology, , 317–48. doi:10.1016/B978-012510451-7/50018-9.
Fabio, Francesconi, and Lupi Omar. 2012. “Myiasis.” Clinical Microbiology Reviews 25(1): 79–105. doi:10.1128/cmr.00010-11.
GRENNAN, S. 1946. “A Case of Oral Myiasis.” British dental journal 80: 274.
Hakeem, M J M L, and D N Bhattacharyya. 2009. “Exotic Human Myiasis.” Travel medicine and infectious disease 7(4): 198–202. doi:10.1016/j.tmaid.2009.05.007.
Messahel, Ahmed, Pinaki Sen, Ajay Wilson, and Manu Patel. 2010. “An Unusual Case of Myiasis.” Journal of infection and public health 3(1): 43–45. doi:10.1016/j.jiph.2009.08.001.
Rossi-Schneider, Tissiana, Karen Cherubini, Liliane S Yurgel, Fernanda Salum, and Maria A Figueiredo. 2007. “Oral Myiasis: A Case Report.” Journal of oral science 49(1): 85–88. doi:10.2334/josnusd.49.85.
Sharma, Jyothi, Gowda Panchaksharappa Mamatha, and Rachana Acharya. 2008. “Primary Oral Myiasis: A Case Report.” Medicina oral, patologia oral y cirugia bucal 13(11): E714-6.
Sheikh, Soheyl, Shambulingappa Pallagatti, Isha Singla, Aman Kalucha, Amit Aggarwal, and Harkamal Kaur. 2011. “Oral Myiasis-A Review.” Journal of Clinical and Experimental Dentistry 3(5): 8–11. doi:10.4317/jced.3.e465.
Zeltser, R, and J Lustmann. 1989. “Oral Myiasis [Corrected and Issued with Original Paging in Int J Oral Maxillofac  Surg 1988 Oct;17(5):288-9].” International journal of oral and maxillofacial surgery 18(2): 288–89. doi:10.1016/s0901-5027(89)80150-x.