title: The diagnosis and treatment of primary adrenal lipomatous tumours in Chinese patients: A 31-year follow-up study.
abstract: BACKGROUND
  Adrenal lipomatous tumours (ALTs) are rarely encountered in clinical practice and consequently little is known about their clinical features.
  
  
  METHODS
  We analyze the clinical features, diagnosis and treatment of ALTs based on cases presenting at a single centre over a 31-year period. We reviewed clinical data from patients with primary adrenal tumours treated at the Ruijin Hospital, Shanghai between January 1980 and December 2010.
  
  
  RESULTS
  A total of 73 cases of primary ALTs in 22 men and 51 women (mean age 51.1±14.2 years) were reviewed. The ALTs included 65 myelolipomas (89.0%), 3 lipomas (4.1%), 2 angiomyolipomas (2.7%), 2 teratomas (2.7%), and 1 liposarcoma (1.4%). Of the total 73 patients, 24 of them had tumours in the left adrenal gland, 47 in the right gland and 2 had bilateral tumours. In total, 51 patients underwent open surgery and 22 laparoscopic surgery.
  
  
  CONCLUSIONS
  Myelolipoma is predominant among the various types of lipomatous adrenal gland tumours; it accounts for about 90% of all cases. Surgery is recommended for tumours ≥3.5 cm in diameter, for all cases of symptomatic tumour, and for cases of teratoma or liposarcoma identified by preoperative imaging.
authors.affiliation: Department of Urology, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China;
authors.forename: Juping
authors.initials: J
authors.lastname: Zhao
authors.affiliation: Department of Urology, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China;
authors.forename: Fukang
authors.initials: F
authors.lastname: Sun
authors.affiliation: Department of Pathology, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China Juping Zhao and Xin Huang contributed equally to this work.
authors.forename: Xiaolong
authors.initials: X
authors.lastname: Jing
authors.affiliation: Department of Urology, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China;
authors.forename: Wenlong
authors.initials: W
authors.lastname: Zhou
authors.affiliation: Department of Urology, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China;
authors.forename: Xin
authors.initials: X
authors.lastname: Huang
authors.affiliation: Department of Urology, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China;
authors.forename: Haofei
authors.initials: H
authors.lastname: Wang
authors.affiliation: Department of Urology, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China;
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: Department of Pathology, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China Juping Zhao and Xin Huang contributed equally to this work.
authors.forename: Fei
authors.initials: F
authors.lastname: Yuan
authors.affiliation: Department of Urology, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China;
authors.forename: Zhoujun
authors.initials: Z
authors.lastname: Shen