Immune System

{"ops":[{"insert":"Differential diagnosis of a liver cyst"},{"insert":"\n","attributes":{"header":1}},{"insert":"There are many kinds of liver cysts, encompassing a wide range of etiologies, such as parasitic lesions, congenital disorders, biliary cysts, and neoplasms.\r\n \r\nSpecific diagnostic tests are usually required to accurately identify the type of cyst in question.\r\n \r\nIn this case, despite an ultrasonographic appearance reminiscent of a simple liver cyst, the presence of eosinophilia and a history of residing in southern Brazil would suggest otherwise.\n"},{"insert":"Role of FNA in the diagnosis of hydatid disease"},{"insert":"\n","attributes":{"header":1}},{"insert":"A histological diagnosis of hydatid disease by FNA is required where serological tests are negative and a cystic tumor is suspected.\r\n \r\nIn general, biopsy can provide a definitive diagnosis for all kinds of hepatic cysts. Further, fine-needle aspiration appears to be safe for suspected hydatid disease. The presence of acellular laminated membranes confirms the diagnosis.\r\n \r\nHowever, FNA should not be used routinely, as imaging and serological tests are noninvasive and usually sufficient to establish the diagnosis.\n"}]}

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