Difference between revisions of "Chondro-osseous tumours"

Chondro-osseous tumours (view source)

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 ==Brown cell tumour==
-===Etiology===
+===General===
+*''Not'' a true neoplasm,<ref name=pmid16775919>{{cite journal |author=Meydan N, Barutca S, Guney E, ''et al.'' |title=Brown tumors mimicking bone metastases |journal=J Natl Med Assoc |volume=98 |issue=6 |pages=950–3 |year=2006 |month=June |pmid=16775919 |pmc=2569361 |doi= |url=http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2569361/?page=1 }}</ref> i.e. the name is a misnomer.
+**May (clinically) mimic a true neoplasm.
 *Due to hyperparathyroidism - usually parathyroid adenoma.
 **Usually secondary to chronic renal failure.
-*''Not'' a true neoplasm,<ref name=pmid16775919>{{cite journal |author=Meydan N, Barutca S, Guney E, ''et al.'' |title=Brown tumors mimicking bone metastases |journal=J Natl Med Assoc |volume=98 |issue=6 |pages=950–3 |year=2006 |month=June |pmid=16775919 |pmc=2569361 |doi= |url=http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2569361/?page=1 }}</ref> i.e. the name is a misnomer.
-**May (clinically) mimic a true neoplasm.
-===Microscopy===
+====Hypercalcemia DDx====
-Features:
-*Fibrosis.
-===Hypercalcemia DDx===
 Mnemonic ''GRIMED'':<ref>TN06 Emerg.</ref>
 *Granulomatous disease (tuberculosis, [[sarcoidosis]]).
@@ Line 373: / Line 369: @@
 *Endocrine (primary hyperparathyroidism - leads to brown cell tumour).
 *Drugs (thiazides ... others).
+===Microscopy===
+Features:
+*Fibrosis.
+*+/-Giant cells.
+DDx:
+*[[Giant cell tumour of bone]].
 ==Giant cell tumour of bone==