Hansjoerg Steiner

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Retiform hemangioendothelioma (RH) is a low-grade angiosarcoma with low metastatic risk, usually occurring as a single lesion on the trunk or extremity in middle-aged adults. Histopathology shows a distinctive pattern with arborizing blood vessels arranged in a retiform pattern (similar to rete testis tissue) and focal papillae with fibrosclerotic (hyaline)(More)
We present the case of a 62-year-old woman who consulted her physician in December 2005, suffering from a mass at the left lower anterior neck with rapid enlargement. Intraoperative frozen section was highly suspicious of a CASTLE tumour (carcinomas showing thymus-like differentiation). Finally, immunohistochemical investigation revealing positivity for(More)
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