title: Torsion of a Giant Pedunculated Hemangioma of the Liver Presenting With Acute Abdomen: A Case Report.
abstract: BACKGROUND
  Hemangioma is the most common benign tumor of the liver. Most cases are asymptomatic and do not require treatment. A hemangioma can rarely be pedunculated; as a result, it may undergo torsion and infarction, which can make it symptomatic.
  
  
  METHODS
  We report the case of a 45-year-old woman with acute abdominal pain due to torsion of a giant pedunculated hepatic hemangioma around its vascular stalk.
  
  
  CONCLUSIONS
  Pedunculated hemangioma of the liver is an uncommon benign tumor, a rare differential diagnosis for a mass located in the upper abdomen. All incidentally detected pedunculated hemangiomas must be surgically managed, as these have a tendency to become torsioned, and there is also a risk of malignancy or rupture.
authors: Department of Surgery, Shahid Beheshti Hospital, Babol University of Medical Sciences, Babol, IR Iran.
authors: Aliasghar
authors: A
authors: Darzi
authors: Department of Gastroenterology, Ayatollah Rouhani Hospital, Babol University of Medical Sciences, Babol, IR Iran.
authors: Hassan
authors: H
authors: Taheri
authors: Clinical Research Department, Shahid Beheshti Hospital, Babol University of Medical Sciences, Babol, IR Iran.
authors: Sekineh
authors: S
authors: Kamali Ahangar
authors: Babol University Of Medical Sciences, Babol, IR Iran.
authors: Alameh
authors: A
authors: Mirzapour Shafiei
authors: Department of Surgery, Shahid Beheshti Hospital, Babol University of Medical Sciences, Babol, IR Iran.
authors: Yasser
authors: Y
authors: Asghari
keywords: Acute Abdomen; Hemangioma; Pedunculated; Torsion