title: A new "anonymous" type of haemangioendothelioma.
abstract: BACKGROUND
  Our report may contribute to a better understanding of the different possible presentations of endothelial tumors.
  
  
  RESULTS
  We report a new type of haemangioendotheliomatous tumor of uncertain aggressiveness arisen in a benign haemangioma of the scalp and represented by a proliferation of small- and medium-sized arborescent vessels whose walls were totally replaced by endothelial-like, atypical cells.
  
  
  CONCLUSIONS
  The features of our case do not fit those of the many types previously reported in the literature. As regards the name, we prefer to consider this new variety as an anonymous type in order to avoid further confusion on a topic deserving a drastic review.
authors.affiliation: Department of Pathology, University of Trieste, Italy. melato@univ.trieste.it
authors.forename: M
authors.initials: M
authors.lastname: Melato
authors.forename: N
authors.initials: N
authors.lastname: Gorji
authors.forename: N
authors.initials: N
authors.lastname: Jonjic
mesh_terms: D000368:Aged; D014408:Biomarkers, Tumor / Q000378:metabolism; D004247:DNA / Q000032:analysis; D003937:Diagnosis, Differential; D006390:Hemangioendothelioma / Q000098:blood supply / Q000145:classification / Q000235:genetics / Q000378:metabolism / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D012535:Scalp / Q000098:blood supply; D012878:Skin Neoplasms / Q000098:blood supply / Q000145:classification / Q000235:genetics / Q000378:metabolism / Q000473:pathology*
chemical_list: D014408:Biomarkers, Tumor; D004247:DNA