Fungal and Parasitic Infections USMLE Step 1 Practice Question
A 46-year-old man from Egypt presents with painless gross hematuria, weight loss, and dysuria. Vital signs: BP 128/82, HR 92, RR 18, Temp 37.2°C, SpO2 98%. Cystoscopy reveals a bladder mass; biopsy confirms squamous cell carcinoma. Urine microscopy demonstrates terminal-spine eggs. Serology is negative for hepatitis B. Which infectious agent is most strongly associated with this malignancy?
Answer choices
- AAdenovirus 11
- BSchistosoma mansoni
- CHuman papillomavirus 16
- DClonorchis sinensis
- ESchistosoma haematobiumCorrect answer
- FEchinococcus granulosus
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