A new "anonymous" type of haemangioendothelioma.
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.
Melato
M
M
Department of Pathology, University of Trieste, Italy. melato@univ.trieste.it
Gorji
N
N
Jonjic
N
N
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*
D014408:Biomarkers, Tumor; D004247:DNA