CASE 30
History: A 70-year-old man presents with epigastric pain and weight loss.
1. In what condition is the Carmen meniscus sign (CMS) found?
2. What is the Kirkland complex?
A. The central excavated collection of barium due to ulceration
B. The concave lucent margin around the ulceration
C. The distorted rugal folds around the ulceration
D. The mass effect surrounding the ulceration
3. Where must the lesion be located for the CMS to be seen?