Repeated USMLE Questions Step 1- 228

Chorioretinitis is a condition in which the choroid and retina of the eye become inflamed. A butcher comes to the doctor's clinic having developed chorioretinitis. On taking history, it is found out that the patient is fond of eating raw hamburgers. The doctor conducts a Sabin-Feldman dye test, the results of which come back positive.

Which of the following is the patient likely to be infected with?

A- Giardiasis

B- Toxoplasmosis

C- Trichinosis

D- Schistosomiasis

Answer






Toxoplasmosis is the most likely cause of infection, even though all the above-listed conditions have significant clinical and epidemiologic features. Toxoplasmosis is a self-limiting and mild condition that occurs if the patient ingests Toxoplasma oocysts. The consumption of raw meat is the cause of the disease. Chronic toxoplasmosis or acute toxoplasmosis is generally associated with serious eye disease, thereby making toxoplasmosis the most likely infection.

The correct answer is B