Diagnose this unusual case in gastroenterology.
D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011859:Radiography; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging