A 23-year-old woman has the sudden onset of lower abdominal…

A 23-year-old woman has the sudden onset of lower abdominal pain. Pelvic examination reveals a normal sized uterus and normal appearing cervix and vagina. However, there is marked tenderness upon palpation of the left adnexal region. A transvaginal ultrasound shows no intrauterine gestational sac, but there is a 2 cm left adnexal mass along with elevated serum hCG. Culdoscocentesis yields bloody fluid. Which condition is this most likely?

A 72-year-old man gets up several times during a football ma…

A 72-year-old man gets up several times during a football match to go to the restroom to urinate, even though he has had only one beer. This is a problem that has plagued him for several years. When he visits his physician for a checkup, on physical examination he has an enlarged, nodular prostate palpated on digital rectal examination. Laboratory studies show his serum prostate specific antigen is in the normal range. Which of the following pathologic findings is most likely to be present on prostate biopsy in this man?

A 29-year-old woman has experienced urinary frequency with d…

A 29-year-old woman has experienced urinary frequency with dysuria for the past 4 days. On physical examination she has no flank pain or tenderness. A urinalysis reveals sp. gr. 1.014, pH 7.5, no glucose, no protein, no blood, nitrite positive, and many WBC’s. She has a normal serum creatinine of 0.9 mg/dL. Which of the following is the most likely diagnosis?