A 54-year-old postmenopausal woman with three weeks of abdominal distention and one week of midabdominal pain.

A 19-year-old man with right testicular pain and swelling.

A 31-year-old woman with intractable nausea, vomiting, and syncope.

A 26-year-old woman with brisk vaginal bleeding.

A 74-year-old woman with chronic pelvic pain.

A 61-year-old man with rising prostate-specific antigen (PSA) levels and recent ultrasound biopsy.

A 45-year-old woman with bilateral flank pain and history of frequent urinary tract infections.

A 45-year-old man with new-onset flank pain.

A 31-year-old woman with acute retention of urine for one day and pain in the lower abdomen for two months.

A 60-year-old woman with weeks of right flank pain.

A 55-year-old man with new-onset, mild, nonspecific abdominal pain.

A 35-year-old transgender man with history of sex reassignment surgery undergoing routine follow-up.

A 64-year-old woman with prior lower-extremity varicose veins now with distended abdominal veins.

A 53-year-old woman with amenorrhea and a history of fibroids and menorrhagia.

A 33-year-old woman at 26 weeks' gestation undergoing prenatal screening.

A 73-year-old man with an elevated prostate-specific antigen (PSA) level and history of cancer.

A 50-year-old man with discomfort in the bilateral testicles.

A 67-year-old man undergoing surveillance imaging after cystectomy for bladder cancer.

A 0-day-old boy (gestational age, 36 weeks and 2 days) with notable scrotal swelling on physical exam.

A 41-year-old man with low cortisol and hypoglycemia.