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Volume 33 (May - August 2019)

Question
A 71-year old female patient with no particular past medical history, presenting with ankle pain evolving for two years. CT scan of the foot showed lytic lesion and associated fracture of the astragalus as well as a loss of substance inside the bone. Excisional biopsy was performed. Macroscopically this was a haemorrhagic friable material. Histologically, this was a benign vascular proliferation, consisting of vascular cavities, more or less filled with red blood cells and coated by a layer of flattened endothelial cells. There was no cytonuclear atypia or abnormal mitotic activity at the level of the endothelial cells. Immunohistochemically, these cells expressed the CD34. What is your diagnosis?









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ISSN: 1937-8688. © 2019 - Pan African Medical Journal. All rights reserved