Clinical features and spiral computed tomography analysis of undifferentiated XXXX in adults.

@entity1 @entity548 @entity409 @entity160 @entity158 @entity1575 @entity157 @entity221
OBJECTIVE: To summarize the clinical and spiral computed tomography (CT) features of undifferentiated @entity409 (UELS) in adults. METHODS: Clinical and CT findings of four adult @entity1 with pathology-approved UELS were retrospectively analyzed with a literature review. All @entity1 were examined using a plain and enhanced spiral CT scan. RESULTS: The @entity1 were two @entity1 and two @entity1 with a mean age of 36.5 years. The clinical manifestations were the right upper quadrant mass, @entity158 (n = four) and intermittent @entity221 (n = three). Laboratory tests showed a mild elevation of @entity160 in one @entity1 and mildly @entity409 in two. @entity1575 was present in one @entity1 coexistent with @entity157 . CT findings indicated a huge well-defined cystic-solid mass with varying degrees of enhancement of the solid component. Irregular high-density lesions showing @entity548 occurred in three @entity1 and the inferior vena cava was compressed in one. CONCLUSION: UELS showed a solitary and predominantly cystic or multicystic appearance on CT imaging compared with ultrasound (US) from the medical literature, which shows a predominantly hypoechoic mass. The laboratory tests were normal or mildly abnormal despite the presence of the large mass. The combination of these clinical features and CT findings together with those of US are helpful in making a prospective diagnosis.
