Here is a possible concise summary:
A student who regularly ate expired food from the garbage developed abdominal pain, facial swelling, and hives. He was diagnosed with appendicitis and had his appendix removed, but the pain persisted. He then had an anaphylactic shock after eating gas station sushi. He was found to have a parasitic infection from a roundworm called Anisakis simplex, which had burrowed into his stomach and intestines. He had surgery to remove the worms and was advised to stop eating raw fish. Anisakis simplex is a common parasite in fish that can cause severe illness in humans if not properly cooked or frozen.
Here are the key facts extracted from the text:
1. TB, a 22-year-old man, presented to the emergency room with facial swelling, shortness of breath, and hives.
2. He had severe right-sided lower abdominal pain for at least three days.
3. TB was a college student who ate discarded food from grocery stores and gas stations to save money.
4. He experienced food poisoning symptoms after eating expired gas station pizza and sushi.
5. TB underwent an appendectomy, but his appendix appeared normal.
6. He continued to scavenge for food post-surgery, experiencing abdominal pain and other symptoms.
7. TB was admitted to the hospital again with anaphylactic shock after eating gas station sushi.
8. A CT scan and endoscopy revealed Anisakis simplex larvae in his intestines.
9. Anisakis simplex is a common roundworm found in raw fish that can cause severe illness.
10. The infection can be mistaken for other conditions like Crohn's disease or appendicitis.
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