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Rathke Cleft Cyst:CT, MR, and Pathology of 23 Cases J Comput Assist Tomogt 19:853-859, Naylor,M.F.,et al, 1995 See this aricle in Pubmed Article Abstract We report the radiologic findings in 23 cases of Rathke cleft cyst(RCC)and correlate them with the histopathology.The appearance of RCC with CT and MRI is variable,and radiologic diagnosis can be difficult.Imaging features such as a sellar epicenter,smooth contour,absence of calcifications, absence of internal enhancement and homogeneous attenuation or signal intensity within the lesion suggest the diagnosis of RCC.Rim enhancement does not correlate with the presence of squamous metaplasia,hemosiderin,or cholesterol within the cyst wall and is not consistently seen in cases with changes of mild,chronic inflammation.In some cases,rim enhancement is due to a peripherally displaced rim of pituitary tissue.

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