Figure. 7 Hematoxylin-eosin (HE) staining shows a dense arrangement of homogeneous round-forming lipocytes and large, circular, ring-like adipocytes on light microscopy, and pathological nuclear schizophrenia was common (magnification, a × 100; b × 200) (a, b); immunohistochemical staining revealed Vimentin positivity (Envision, × 200) (c); immunohistochemical staining revealed high CD34 positivity (Envision, ×200) (d).