Aneurysmal Bone Cyst

These cysts are benign and not neoplastic. They can be rapidly expansile and locally destructive. It is thought that they are secondary to arteriovenous malformation or trauma, or arise against the background of a pre-existing lesion.

FIGURE 24 Aneurysmal bone cyst. Varying sized blood-filled spaces are separated by loose fibrous tissue. The blood-filled spaces usually lack a definitive lining. Multinucleated giant cells can be found within the septa (hematoxylin and eosin, original magnification x 4).

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Dealing With Back Pain

Dealing With Back Pain

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