1. Simple and Effective Field Extraction of Human Botfly, Dermatobia Hominis, Using a Venom Extractor 
Jonathan K. West, MD 
Wilderness & Environmental Medicine 
Volume 24, Issue 1, Pages (March 2013)
DOI: /j.wem
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2. Figure 1
Skin lesion of botfly myiasis third-instar larva on the upper right chest of the patient, with magnified inset. Note the central punctum or orifice through which the larva breathes. Respiratory spiracles at the posterior end of the larva can be seen in the center of the lesion. Motion could be visualized through the breathing aperture.
Wilderness & Environmental Medicine  , 17-22DOI: ( /j.wem )
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3. Figure 2
Dermatobia hominis larva after extraction. The larva measures 2 cm. The anterior portion of the larva with noticeable dark-colored maxillae is at the right aspect of the image. The spiracles on the posterior aspect of the larva can be seen through the breathing aperture in Figure 1. Notice concentric parallel rows of spines in the anterior segments, which lock the larva in place.
Wilderness & Environmental Medicine  , 17-22DOI: ( /j.wem )
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4. Figure 3
Sequence of images using the venom extractor to remove the botfly larva from the skin. (A) The placement of antibiotic cream over the respiratory aperture. (B) Thin plastic wrap was placed over the cream to create an occlusive dressing and left in place for 30 minutes. The vacuum extractor was (C) applied and (D) activated. In (D) and (E), the action of the extractor is pulling the larva from the subcutaneous cavity. (F) The intact larva and wound immediately after extraction. (G) The venom extractor device. See video in the online version of this article for real-time extraction sequence.
Wilderness & Environmental Medicine  , 17-22DOI: ( /j.wem )
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5. Supplementary Figure
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