Spinal Nerve Root Haemangioblastoma Associated with Reactive Polycythemia

Figure 6

100x magnification of the H & E section (a) showing numerous fine capillaries (dark purple dots) separated by stromal cells with vacuolated cytoplasm (nonstained areas, black arrows). Oil Red O stain (×400 magnification; (b)) demonstrates tumour cells that are lipid laden (all regions stained red, illustrated with arrows). Overall features are compatible with a haemangioblastoma.

(a)

(b)