Also known as: Absorbed twin
Alex presents with a self-inflicted abdominal wound after attempting to remove what he believes is something living inside him. Surgery reveals an absorbed twin (fetus in fetu) embedded in his abdomen, which he had instinctively known was there.
Also known as: Blocked arteries
Ray undergoes CABG surgery for severe three-vessel coronary disease with heavy calcification. Post-operatively develops a clot in the LAD requiring thrombo-aspiration, followed by arterial rupture requiring emergency stenting.
Also known as: OTC deficiency
Myra collapses and develops progressive neurological decline with seizures and cerebral edema leading to brain death. Diagnosis of OTC deficiency is made posthumously, explaining how fasting during finals released protein from muscle breakdown, causing toxic ammonia buildup.
Also known as: OTC deficiency
Eric's history of feeling sick after eating protein leads to the diagnosis of OTC deficiency, which he has been self-medicating with drugs. His symptoms provide the key clue to his sister Myra's fatal condition.
Also known as: Heroin addiction
Eric has been using drugs to self-medicate the chronic discomfort from undiagnosed OTC deficiency. He agrees to enter a treatment program at the end of the episode.