XXXX : Clinical characteristics and retroperitoneal laparoscopic resection in five adults.

@entity1 @entity5 @entity730 @entity5343 @entity854 @entity1943 @entity44 @entity774
UNASSIGNED: @entity5343 is extremely rare. To investigate the clinical characteristics and further enrich the limited knowledge on its diagnosis and treatment, the present study retrospectively analyzed the detailed clinical data of five @entity1 with primary @entity774 treated in the Peking Union Medical College Hospital (Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China) between March 2009 and February 2014. The five @entity1 were female, aged from 16 to 51 years (mean, 36.0  16.3 years), with solitary lesions that were incidentally found on routine physical examinations. The @entity5 size ranged from 2.4 to 9.0 cm (mean, 6.0  2.7 cm). Ultrasonography revealed a mixed echo in four @entity1 , and computed tomography showed mixed density masses with fat components and calcification in three @entity1 . Adrenal-related endocrine tests were normal in all five @entity1 , and no abnormalities were found in the three @entity1 who underwent @entity1943 receptor scintigraphy examination. All @entity1 were treated with retroperitoneal laparoscopic surgery, with no complications, and the resected @entity5 were identified as mature cystic @entity44 pathologically. To date, the @entity1 have been followed up for 4-60 months post-operatively, with no recurrence. In conclusion, this rare @entity774 is an occult entity to which reproductive females are susceptible. The @entity5 exhibits no typical clinical manifestations or adrenal-related @entity854 , and the pre-operative diagnosis mainly relies on imaging characteristics of a heterogeneous lesion containing fat components with scattered and marginal @entity730 . The preferred treatment is retroperitoneal laparoscopic surgery, and the prognosis is good.
