Composite hemangioendothelioma with neuroendocrine marker expression: an aggressive variant.

This corrects the article DOI: 10.1038/modpathol.2017.

Composite hemangioendothelioma with neuroendocrine marker expression: an aggressive variant.

Aberrant expression of neuroendocrine markers is extremely rare in endothelial neoplasms, with only a single report describing three cases. Although originally classified as conventional angiosarcoma, further assessment of these tumors revealed a strikingly composite morphology composed of retiform and epithelioid elements reminiscent of composite hemangioendothelioma, a rare subtype of hemangioendothelioma. To further investigate these findings, available materials from 11 morphologically distinctive endothelial tumors showing neuroendocrine marker expression were retrieved from our archives.