system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 22-year-old man is rushed to the emergency room with constant, severe right lower abdominal pain that started 7 hours ago in the periumbilical region and later shifted to the right lower quadrant with a gradual increase in intensity. The patient’s blood pressure is 110/80 mm Hg, the heart rate is 76/min, the respiratory rate is 17/min, and the temperature is 37.5℃ (99.5℉). The physical examination shows tenderness, muscle guarding, and rebound over the right lower quadrant of the abdomen. Abdominal sonography shows a dilated appendix with a periappendiceal fluid collection. He is diagnosed with acute appendicitis and undergoes a laparoscopic appendectomy. The histopathologic examination of the removed appendix is shown in the image. Which of the following substances is responsible for attracting the marked cells to the inflamed tissue?
assistant
IL-8