Myiasis is a medical condition in which the body of a live mammal is infested by parasites. In this disease live fly larvae (maggots) grow inside the mammal by feeding on the tissue. A specific species of flies called the myiatic flies can create an infestation at the site of the broken skin. Symptoms of Myiasis are:
• Painful, slow developing ulcers or boil like sores (Cutaneous Myiasis)
• Obstruction of nasal passages and severe irritation (nasal Myiasis)
• Facial edema and pain (Ophthalmomyiasis)
• Buzzing sound or crawling sensation in ear (Aural Myiasis)
• Discharge from wound
HOW IS MYIASIS DIAGNOSED?
Diagnosis of cutaneous myiasis is made primarily on the clinical appearance of the lesions, associated symptoms, and travel history. Dermoscopy and ultrasound may be helpful. Submerging the lesion under water may confirm the diagnosis – if the larva is alive, bubbling will occur. G. intestinalis larva can be diagnosed by massaging a thin layer of mineral oil over the red lesion. Under magnification, black transverse bands can be seen that represent spines on the larva's body segments.
HOW IS MYIASIS TREATED?
Treatment is to first remove the larvae. This is done using different methods based on the location of the larvae.
DID YOU KNOW?
There are three main fly families causing important Myiasis in humans which include blowflies, botflies and flesh flies.