Journal
INTERNATIONAL JOURNAL OF SURGICAL PATHOLOGY
Volume 28, Issue 7, Pages 759-763Publisher
SAGE PUBLICATIONS INC
DOI: 10.1177/1066896920924120
Keywords
composite hemangioendothelioma; paraganglioma; synaptophysin; retiform hemangioendothelioma; D2-40
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Composite hemangioendothelioma is a rare vascular tumor morphologically comprising several distinct vascular components and exhibits a borderline malignant potential. We described the case of a 53-year-old female who presented with an infiltrative mass in the paravertebral soft tissue. The tumor showed discrete nests of synaptophysin-expressing epithelioid cells accompanied by rich vasculature, features highly reminiscent of sympathetic paraganglioma. Further analysis revealed areas resembling spindle cell hemangioma, retiform hemangioendothelioma, cavernous hemangioma/lymphangioma, and epithelioid hemangioendothelioma without the myxohyaline matrix in the tumor, and a final diagnosis of composite hemangioendothelioma with synaptophysin expression was made. Critical appraisal of this recently described entity and its possible pathogenic relationship with retiform hemangioendothelioma were discussed.
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