Schmorl's node: Difference between revisions

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 Image:Roe-schmorl.jpg | Schmorl's node. (WC)
 </gallery>
+DDx - radiologic:
+*[[Plasma cell neoplasm]].
+*Metastatic carcinoma.
+==Microscopic==
+Features:<ref name=pmid12931811>{{Cite journal  | last1 = Peng | first1 = B. | last2 = Wu | first2 = W. | last3 = Hou | first3 = S. | last4 = Shang | first4 = W. | last5 = Wang | first5 = X. | last6 = Yang | first6 = Y. | title = The pathogenesis of Schmorl's nodes. | journal = J Bone Joint Surg Br | volume = 85 | issue = 6 | pages = 879-82 | month = Aug | year = 2003 | doi =  | PMID = 12931811 | URL = http://www.bjj.boneandjoint.org.uk/content/85-B/6/879.long }}</ref>
+*Subchondral [[necrosis]] of bone - '''key feature'''.
+**Loss of osteocytes within the bony trabeculae.
+*Reactive [[woven bone]]:
+**Thickened trabeculae.
+**Increased numbers of osteoblasts and osteoclasts.
+*Bone marrow cavity fibrosis with small blood vessels and loss of adipocytes (reactive process).
+Note:
+*Histologically, ''Schmorl's node'' is considered a cousin of [[avascular necrosis of the femoral head]].<ref name=pmid12931811/>
+==Sign out==
+<pre>
+LESION, L4 VERTEBRA, BIOPSY:
+- BENIGN BONE AND BONE MARROW.
+- NEGATIVE FOR MALIGNANCY.
+</pre>
+===Micro===
+The sections show woven bone with slightly thickened bony trabeculae.  Bone with some empty
+lacunae is seen focally. A small amount of benign fibrotic tissue with small blood vessels
+is present. The bone marrow present has all three lineages. No atypical cells are apparent.
 ==See also==
 *[[Spine]].
+*[[Necrosis]].
 ==References==
-{{Reflist|1}}
+{{Reflist|2}}
 [[Category:Diagnosis]]

Schmorl's node: Difference between revisions

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