A patient with travel to Mexico presented to his local public health facility with general
abdominal discomfort. A stool specimen was collected and processed using the formalinethyl
acetate (FEA) procedure. A wet mount was prepared and examined. Digital images
were captured and sent to DPDx for consultation. Figures A-D show the objects of interest,
which measured 12-15 micrometers in length.
What is your diagnosis? Based on what criteria?