Incidental Presacral Myelolipoma Resembling the Liposarcoma: A Case Report and Literature Review

Figure 4

Histopathology of the tumor shows mature adipose tissue mixed with hematopoietic tissue, which included erythrocytes, myelocytes, and megakaryocytes. Immunohistochemical staining confirmed the presence of hematopoietic elements consisting of myeloperoxidase-positive myeloid elements and factor VIII-positive megakaryocytes (HE stain (a) ×400, (b) ×40, (c) myeloperoxidase-positive myeloid elements, and (d) factor VIII-positive megakaryocytes).

(a)

(b)

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(d)