CASE 90
History: A 74-year-old man presents after noticeable darkening of his feces.
1. Which of the following should be included in the differential diagnosis of the imaging finding shown in the figures? (Choose all that apply.)
2. What is the most common type of multiple gastric polyps?
3. With which polyposis syndrome is gastric adenomas associated?
4. A patient with multiple gastric polyps also manifests circumoral papillomatosis and skeletal malformations. What polyposis syndrome does the patient have?