A 13-year-old girl is brought to the clinic for evaluation of short stature. Since childhood, she has always been the shortest among her friends, and her parents are concerned about her growth. The girl is otherwise healthy, and she has not yet had a menstrual period. Her father is 190 cm (6 ft 2 in) tall, and her mother is 180 cm (5 ft 9 in) tall. On examination, the patient's height is at the 5th percentile, and weight is at the 60th percentile. Blood pressure is 140/90 mm Hg in the right upper arm and 90/50 mm Hg in the lower extremities. The abdomen is soft and non-tender. Ultrasonography shows the presence of a prepubertal uterus with small ovaries. Further imaging reveals the following exhibit.