A 23-year-old man, presented to the physician with a long medical history from when, as a 6-year-old, he was referred to a pediatrician by a dentist. Family history At that time when he was 6, the dentist was about to administer an anesthetic drug by injection prior to extracting a tooth when he elicited a history of Easy bruising in the boy A brother who died at age one from an intracranial hemorrhage after falling from a crib. He also had several instances of severe bruising following minor trauma and progressively worsening arthritis of both knee joints over the past four years. Maternal grandfather : died at age 27 of a bleeding complication following an appendectomy.
Maternal grandmother : remarried, and his mother lost complete touch with her deceased father's family. Mother's half-brothers : 3, alive and well. Lab findings in Justin at that time were as follows (image 1): …
