Cryptic Myiasis by Chrysomya bezziana: A Case Report and Literature Review

Abstract

Myiasis is the invasion of living animal tissue by fly larvae. Orbital tissue infestation involvement occurs in 5% of all myiasis cases and is potentially destructive. Infection by Chrysomya bezziana is very rare in clinical practice. A 65-year-old woman with history of left eye evisceration presented to the emergency department due to a creeping sensation in the left eye socket and underwent medical and surgical treatment for C. bezziana ophthalmomyiasis. A systematic review was performed to identify ophthalmomyiasis cases caused by C. bezziana published in PubMed and Embase until December 2019. C. bezziana can cause major destruction to both vital and non-vital tissues. It should be treated promptly to prevent extensive damage and life-threatening conditions. This report provides an overview of the epidemiology, causes, risk factors, diagnosis, and treatment options that could assist clinicians in diagnosis and management of this condition.

Keywords: Anemia; Chrysomya bezziana; ophthalmomyiasis; orbital myiasis.

Figure 1

A) Initial presentation with myiasis, B) Swan neck deformity

Figure 2

CT scan of the orbit and head CT: Computed tomography

Figure 3

A) Maggots emerging after application of turpentine oil, B) Healed socket after 6 weeks

Figure 4

A) Cuticular spines of larva, B) Larva under microscope