A 22 year old woman volunteered for a medical mission in Egypt.Before she returned to the United States,she wanted to swim in a tributary of the famous Nile River.This she did,but,after her return,she noted pain in the suprapubic area and bloody urine.A biopsy of the bladder was done,revealing the findings shown in the accompanying high power photomicrograph.The structure marked "SE" is virtually pathognomonic for the disorder,which is which one of the following infections?

Question

Quizplus · Accepted Answer

Schistosoma haematobium is a fluke,found in fresh water (especially in Egypt).The free-swimming cercarial larvae enter through intact human skin,and lay their eggs in the pelvic veins,whereupon the eggs make their way to the bladder.They exit the body via the urine,and larvae find their way to a fresh water snail,and the cycle repeats.

A 22 Year Old Woman Volunteered for a Medical Mission