Gastrophilus intestinalis (horse botfly)

Epidemiology

• horseback riders become infested when eggs deposited on the flank of the horse hatch against their bare legs

Pathology

• maggots do NOT mature after penetrating human skin, but migrate for weeks in the epidermis

Clinical manifestations

• pruritic & serpinginous eruption resemble cutaneous larval migrans caused by Ancylostoma braziliense

Management

• the black spines of the larvae can be identified after mineral oil is smeared over the lesion
• larvae are removed with a needle

More general terms

• Gastrophilus