title: Typical MDCT Angiography Findings of an Unusual Cutaneous Neoplasia; Masson Tumor.
abstract: BACKGROUND
  Intravascular papillary endothelial hyperplasia (IPEH), also known as masson tumour, is a lesion composed of proliferating endothelial cells.
  
  
  METHODS
  In this article we explained clinical, histological and radiological features of IPEH involving the scalp, localized on the left side of the skull and in the periauricular region.
  
  
  CONCLUSIONS
  Radiologically, intravascular papillary endothelial hyperplasia could be misdiagnosed as malignant or benign vascular tumour. On cross-sectional imaging it is useful demonstrating the extremely vascular component of IPEH. But IPEH has no specific radiologic features that we can use to differentiate from the aforementioned lesions. Due to that, histopathological examinations are needed to diagnose IPEH.
authors.affiliation: Department of Radiology, Istanbul University Cerrahpaşa Medical Faculty, Istanbul, Turkey.
authors.forename: Onur
authors.initials: O
authors.lastname: Tutar
authors.affiliation: Department of Radiology, Istanbul University Cerrahpaşa Medical Faculty, Istanbul, Turkey.
authors.forename: Cesur
authors.initials: C
authors.lastname: Samanci
authors.affiliation: Department of Radiology, Istanbul University Cerrahpaşa Medical Faculty, Istanbul, Turkey.
authors.forename: Selim
authors.initials: S
authors.lastname: Bakan
authors.affiliation: Department of Radiology, Istanbul University Cerrahpaşa Medical Faculty, Istanbul, Turkey.
authors.forename: Denizcan
authors.initials: D
authors.lastname: Alis
authors.affiliation: Department of Pathology, E-Cytopatology Laboratory, Istanbul, Turkey.
authors.forename: Ahmet
authors.initials: A
authors.lastname: Kaur
authors.affiliation: Department of Radiology, Istanbul University Cerrahpaşa Medical Faculty, Istanbul, Turkey.
authors.forename: Deniz Tekcan
authors.initials: DT
authors.lastname: Şanlı
authors.affiliation: Department of Radiology, Centermed Advanced Imaging Center, Istanbul, Turkey.
authors.forename: Duzgun
authors.initials: D
authors.lastname: Yildirim
keywords: Angiography; Hyperplasia; Multidetector Computed Tomography