A 32-year-old man visited the Philippines for a month, traveling throughout the major islands on nature tours.
Nine months after his trip, he visited his physician due to a small lump in his groin. He did not have discharge or discomfort from the nodule.
The patient was referred to an infectious disease physician who ordered a blood film examination; the patient's blood was drawn during evening hours.
The object in
Figure A was seen on a Giemsa stained thick smear (magnification 400×), and the object in Figure B was
observed on a Giemsa stained thin smear (magnification 500×). The objects measured approximately
215 micrometers long