Bone chapter (nontumor and tumor)
Other tumors of bone
Reviewer: Nat Pernick, M.D. (see Reviewers page)
Revised: 15 August 2013, last major update June 2005
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.
- Ectopic notochordal rests present in 2% of adult autopsies at clivus (base of skull) or anterior pons
- Notocord represents a primitive spine which normally induces development of future vertebrae and eventually forms nucleus pulposus of intervertebral disc
- Discrete gelatinous nodule
- Cells are uniform without lobularity or variability
- No pleomorphism or necrosis or mucinous pools containing syncytial cell cords, no/rare mitotic activity
- Not infiltrative or destructive
End of Bone chapter (nontumor and tumor) > Other tumors of bone > Ecchordosis physaliphora
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