This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
Carman's meniscus sign is diagnostic of – 
Select and explain. 
A. Peptic ulcer, B. Cholecystitis, C. Carcinoma of stomach, D. Meconium ileus
C: Carcinoma of stomach
Answer: C: Carcinoma of stomach 
Explanation: Hampton's line               → Pathognomonic of benign gastric ulcer
Carman's meniscus sign → Diagnostic of malignant gastric ulcer (Carcinoma of stomach)