We compared the diagnostic utility of computed tomography (CT) and magnetic resonance imaging (MRI) in a @entity1 with a pelvic @entity808 . This 46-year-old @entity1 was admitted for evaluation of a retroperitoneal pelvic mass and @entity1868 uteri. The retroperitoneal pelvic mass had been detected by a CT scan at a routine health examination. A CT scan revealed a well-circumscribed @entity5 (4 x 3 cm) at the right internal obturator muscle portion. The CT number of the inner part of the @entity5 was 21. Only the cyst wall was enhanced by injection of a contrast medium. MRI showed a 4 x 3 x 3-cm retroperitoneal @entity5 that demonstrated low-intensity signals on T1-weighted images and high-intensity signals on T2-weighted images. Small areas of low intensity inside the @entity5 were observed on T2-weighted images. Histological examination revealed a typical @entity808 of mixed Antoni type A and type B. These findings indicate that both MRI and CT are useful for diagnosis of @entity808 .

CT and MRI findings in a case of pelvic XXXX .

@entity1 :: ('9606', 'Species') :: ['woman', 'patient'] @entity1868 :: ('MESH:D009214', 'Disease') :: ['myoma'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'cystic tumor'] @entity808 :: ('MESH:D009442', 'Disease') :: ['schwannoma', 'retroperitoneal schwannomas']
@entity808 :: (MESH:D009442,Disease) :: ['schwannoma']
