A holiday bug - Answers

ABSTRACT

(Refer to page 164) Answer Giardiasis. The slide shows duodenal biopsy with pear shaped protozoa of Giardia lamblia on the luminal surface of the villi. Giardia lamblia is a pear-shaped, flagellated protozoan that causes a wide variety of gastro-intestinal complaints. Giardia is possibly the most common parasite of humans worldwide and the second most common in the United States after pinworm.