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====Micro==== | ====Micro==== | ||
The sections show laminar bone with a marrow space containing adipose tissue and benign skeletal muscle. The osteocytes show no nuclear atypia. No mitotic activity is appreciated. | The sections show laminar bone with a marrow space containing adipose tissue and benign skeletal muscle. The osteocytes show no nuclear atypia. No mitotic activity is appreciated. | ||
==Lumbar bone== | |||
===General=== | |||
*May be seen in the context of laminectomies to treat cauda equina syndrome. | |||
===Microscopic=== | |||
Features: | |||
*Degenerative fibrocartilage: | |||
**Multiple chondrocytes in one pocket (lacuna) - regenerative change. | |||
**Degenerative cartilage. | |||
*Non-vital bone: | |||
**Empty lacuna. | |||
DDx: | |||
*Occult malignancy. | |||
===Sign out=== | |||
<pre> | |||
LUMBAR BONE, LAMINECTOMY: | |||
- NON-VITAL BONE. | |||
- VERTEBRAL DISC WITH DEGENERATIVE CHANGES. | |||
- NEGATIVE FOR MALIGNANCY. | |||
</pre> | |||
=Other= | =Other= |
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