A man with pain during defecation, no gastrointestinal symptoms, and ulcers extending into the anal canal. Diagnosis?
ACytomegalovirus (CMV)
BGonococcal infection
CGenital herpes
DHIV infection
A patient presents with urethral discharge. Gram stain shows intracellular gram-negative diplococci. What is the causative organism?
AMycoplasma genitalium
BTreponema pallidum
CChlamydia trachomatis
DNeisseria gonorrhoeae
Which of the following is NOT a cause of secretory diarrhea?
AInflammatory bowel disease (IBD)
BLactose intolerance
CGastrinoma
DCeliac disease
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