title: Peliosis hepatis: 2 case reports of a rare liver disorder and its differential diagnosis.
abstract: BACKGROUND
  Peliosis hepatis (PH) is a rare tumor-like liver lesion composed of multiple blood-filled cavities within the liver parenchyma. It is hard to differentiate PH from other liver lesions by imaging, such as carcinoma, metastases, or abscess.
  
  
  METHODS
  Here, we reported 2 cases that presented with liver lesions under ultrasound and computed tomography (CT) scanning, without any history of liver diseases or drug usage traced back.
  
  
  METHODS
  Liver biopsy and laparoscopy were processed, and the lesions were eventually diagnosed as PH by histopathology, which microscopically presented with multiple sinusoidal dilatations with blood-filled cystic spaces.
  
  
  METHODS
  After the liver biopsy or laparoscopy, the patients were discharged and followed up in the clinic.
  
  
  RESULTS
  Both patients were followed up for at least 1 year with good recovery.
  
  
  CONCLUSIONS
  PH should always be recognized in the differentiation of liver lesions, particularly indistinctive lesion(s) without any history of liver-related diseases.
authors.affiliation: Department of Infectious Diseases, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College Department of Infectious Diseases, the Second Affiliated Hospital of Zhejiang Chinese Medical University, Zhejiang, China.
authors.forename: Yi-Ning
authors.initials: YN
authors.lastname: Dai
authors.forename: Ze-Ze
authors.initials: ZZ
authors.lastname: Ren
authors.forename: Wen-Yuan
authors.initials: WY
authors.lastname: Song
authors.forename: Hai-Jun
authors.initials: HJ
authors.lastname: Huang
authors.forename: Dan-Hong
authors.initials: DH
authors.lastname: Yang
authors.forename: Ming-Shan
authors.initials: MS
authors.lastname: Wang
authors.forename: Yi-Cheng
authors.initials: YC
authors.lastname: Huang
authors.forename: Mei-Juan
authors.initials: MJ
authors.lastname: Chen
authors.forename: Jia-Jie
authors.initials: JJ
authors.lastname: Zhang
authors.forename: Yong-Xi
authors.initials: YX
authors.lastname: Tong
authors.forename: Hong-Ying
authors.initials: HY
authors.lastname: Pan
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008099:Liver / Q000473:pathology; D008297:Male; D008875:Middle Aged; D010382:Peliosis Hepatis / Q000000981:diagnostic imaging* / Q000473:pathology