This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vermiform Appendix, Subject name: Surgery
[{'content': 'From the surgery done below, name the gold standard investigation used to diagnose this condition: \nSelect and explain. \nA. CECT, B. Ultrasound, C. MRI, D. Laparotomy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The specimen in the image is Appendix and the surgery performed is Appendectomy CECT done to confirm diagnose at a 5-6 ALVARADO Score as it is Equivocal. Gold standard for Dx of Acute Appendicitis-CECT. Features seen in CECT in case of acute appendicitis- Diy fat thickened mesoappendix Appendicular faecolith Arrowhead sign- Thickened caecum funneling contrast into orifice of appendix Gold standard for Dx of Acute Appendicitis in Children-ULTRASOUND', 'role': 'assistant'}]