Periorbital dirofilariasis-Clinical and imaging findings: Live worm on ultrasound

Abstract

Ocular dirofilariasis is a zoonotic filariasis caused by nematode worm,Dirofilaria. We present a case of dirofilariasis affecting the upper eyelid in a 2-year-old child presenting as an acutely inflammed cyst, from southern Indian state of Kerala. Live adult worm was surgically removed and confirmed to be Dirofilaria repens. Live worm showing continuous movement was seen on the pre-operative high-resolution ultrasound. Ultrasound can be helpful in pre-operative identification of live worm.Imaging findings reported in literature are very few. We describe the clinical, ultrasound, and magnetic resonance imaging (MRI) findings.

Keywords

• Algorithmic approach
• differential diagnosis
• naming and meshing
• uveitis
• Uveitis; imaging; fluorescein angiography; optical coherence tomography
• Angiotensin converting enzyme
• antitoxoplasma antibody
• laboratory test
• tuberculin test
• Corticosteroids
• immunosuppressives
• medical management
• uveitis
• Cataract surgery in uveitis
• glaucoma surgery in uveitis
• vitrectomy in uveitis
• Sarcoidosis
• choroidal nodules
• uveitis
• Central India
• conjunctivitis
• Oestrus ovis
• Ophthalmomyiasis
• Acute retinal necrosis
• ocular toxoplasmosis
• polymerase chain reaction
• scleritis
• Magnetic resonance imaging
• ocular dirofilariasis
• ultrasound