A 27-year-old man with years of intermittent left scrotal pain, worsening over the last two years. 

A 27-year-old woman with an incidental finding on third-trimester ultrasound scan.

A 27-year-old woman with a twin pregnancy at 23 weeks of gestation with an abnormal second-trimester ultrasound scan.

A 27-year-old woman with intermittent abdominal pain for the past 10 days.

A 27-year-old woman with irregular and painful menses.

A 27-year-old woman with a left breast mass self-detected two weeks ago.

A 27-year-old woman with six days of brisk vaginal bleeding and crampy pelvic pain.

A 28-year-old man with an incidental finding on scrotal ultrasound.

A 28-year-old man with acute worsening of scrotal swelling.

A 28-year-old man with testicular pain two weeks after a motor vehicle accident.

A 28-year-old pregnant woman presents for an anatomical obstetric ultrasound.

A 28-year-old pregnant woman undergoing a routine ultrasound scan.

A 28-year-old pregnant woman with left-sided pelvic pain and light vaginal bleeding.

A 28-year-old woman presents with vaginal bleeding. Patient is 13 weeks pregnant by last menstrual period.

A 28-year-old lactating woman with several weeks of worsening, right subareolar breast pain.

A 28-year-old woman with three days of left medial breast pain and erythema.

A 28-year-old woman with neck tenderness and discomfort for the past week.

A 28-year-old woman with a palpable right breast lump for months' duration.

A 28-year-old woman G3P0 status post spontaneous abortion two weeks ago presents with spotting for the past several days. Beta human chorionic gonadotropin (βhCG) level remains elevated.

A 28-year-old woman with worsening vaginal bleeding following a recent spontaneous abortion.