TvDx
Grey's Anatomy

Grey's AnatomyABC

Season 13, Episode 21

5 medical diagnoses portrayed

Watch on Amazon

Also known as: Blocked intestine

Mary presents with severe abdominal pain and distension. Initial imaging shows classic loops indicating bowel obstruction, initially thought to be from previous appendectomy scarring.

Grey's Anatomy — S13E21Patient: Mary Parkman

Also known as: Roundworm infection

Intestinal obstructionIntestinal ulceration

Mary is discovered to have a massive infestation of Ascaris lumbricoides (intestinal roundworms) causing her bowel obstruction. The worms are found throughout her intestines, some measuring up to 10 inches long, and are causing ulcerations. This diagnosis becomes a central plot point affecting her romantic relationship.

Grey's Anatomy — S13E21Patient: Mary Parkman

Also known as: Cancer spread to spine

Spinal cord compressionBack painNumbness

Veronica is a pregnant cancer patient at 34 weeks who delayed cancer treatment to protect her baby. Her cancer has metastasized to her spine, causing spinal cord compression, severe back pain, and numbness. The diagnosis accelerates her prognosis from 7-8 months to 2-3 months.

Grey's Anatomy — S13E21Patient: Veronica

Also known as: Blood clot in lung

HypoxiaTachycardiaHemodynamic instability

Shortly after delivering her baby via C-section, Veronica develops a pulmonary embolism with secondary clot formation. She becomes tachycardic and hypoxic, requiring emergency embolectomy. She ultimately refuses the procedure due to her pre-signed DNR and dies on the table.

Grey's Anatomy — S13E21Patient: Veronica
Preterm birthsupporting

Also known as: Preterm delivery

Due to Veronica's advancing cancer and spinal cord compression, the medical team performs an emergency C-section at 34 weeks 3 days to deliver her baby safely before her condition deteriorates further.

Grey's Anatomy — S13E21Patient: Veronica