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Patients with acute abdominal pain due to acute colonic diverticulitis are a frequent cause of hospital admission. Diverticuar disease increases with age. In Western populations, diverticular disease is diagnosed in 50% individuals over 70 years and 80% over 85 years of age. The identification of patients with acute diverticulitis is a considerable challenge, since numerous other acute abdominal conditions mimic its clinical characteristics. Another problem is the atypical presentation in older patients. A high index of suspicion in the setting of a compatible history and physical examination serves as the cornerstone of early diagnosis. The purpose of this review is to underline the importance of an intimately integrate multidisciplinary approach between emergency physicians, radiologists and surgeons.

The differential diagnosis of cystic neoformations in the pancreas is challenging. We report a case of a true solitary cyst of the pancreas in a 26-year old woman. Abdominal magnetic resonance imaging and computed tomography showed a unilocular neoformation in the head of the pancreas, without obstruction of Wirsung's duct. We excised the cyst and performed Roux-en-Y loop pancreaticojejunostomy, but the patient suffered recurrent acute pancreatitis from Wirsung's duct stenosis. Thus, a new Roux-en-Y loop pancreaticojejunostomy was successfully done 6 months later. Histologically, the cyst was lined by cuboidal epithelium, immunohistochemically positive to anti-carbohydrate antigen 19-9 antibodies. To our knowledge, only 11 cases of solitary true cyst of the pancreas in adults have been reported, so the characteristics of this unusual entity are not well known. We propose a scheme for the differential diagnosis of cystic neoformations of the pancreas, starting from the histopathological definition of a true solitary cyst. [ABSTRACT FROM AUTHOR]