None of these associated findings LY317615 were present in our patient. Differential diagnosis Particularly in patients who present without symptoms and signs typically associated with tuberculosis, most notably raised temperature, night sweats, weight loss or cough, a range of cystic pancreatic lesions may need to be considered: ��Simple�� epithelial cystic pancreas lesions are typically asymptomatic and thus found incidentally in most instances [14]. A predominant localization within the pancreas has not been reported. In general, they present as an encapsulated homogeneous fluid collection with water Hounsfield units [15]. Thus, they are anechoic on ultrasound (US), hypodense on CT, hypointense on T1-weighted MR and hyperintense on T2-weighted MR images.

Because of the absence of an enhancing solid mass within the cyst they show no inner enhancement [16, 17]. Pancreatic epithelial cysts can occur congenitally; in most cases, they are associated with systemic diseases or syndromes (often multiple cysts), such as von Hippel-Lindau disease [15, 18] or autosomal dominant polycystic kidney disease [15, 17]. Age and gender distribution depend on the underlying cause. By far the most common single cystic lesion of the pancreas is the pancreatic pseudocyst, which usually results from prior pancreatitis [17�C20]. Therefore, pancreatic calcifications, irregular pancreatic duct dilatation and inflammatory changes in the peripancreatic fat should be looked for. Pseudocysts are typically located in the tail or body of the pancreas [21].

In contrast to simple pancreatic cysts, ��complicated�� cysts may have an attenuation suggesting a protein-rich fluid content (> 20 Hounsfield units) or a partially solid content. Complicated cysts may be septated or calcified and their wall or septa can be well enhancing. Therefore, a heterogeneous appearance and contrast enhancement can occur. The presentation of these cystic masses can be highly variable, e.g. multicystic, lobulated, smooth, pleomorphic, with or without an internal septation, etc. [22]. Ninety % of common primary cystic pancreatic tumors are covered by three entities: serous or mucinous cystadenoma and intraductal papillary mucinous neoplasm Anacetrapib [18]. These will be described below: Serous cystadenoma, is typically located in the pancreatic head, and may present with a honeycomb pattern. Presumably because of the small diameter of the associated microcysts (<2mm) it can mimic a solid mass, especially on CT. Thus T2-hyperintensity on MRI can be helpful in the differentiation [23]. In 20�C30% of the cases, a central star-like ��scar�� with calcifications can be seen [6, 23]. This fibrous part can show late contrast enhancement [24].