Angiomyolipoma differential diagnosis: Difference between revisions
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**May contain fat: lipid necrosis or osseous metaplasia | **May contain fat: lipid necrosis or osseous metaplasia | ||
*[[Oncocytoma]]: may contain fat | *[[Oncocytoma]]: may contain fat | ||
*[[ | *[[Wilm's tumour]]: may contain fat | ||
*Perirenal fat entrapment / renal junctional parenchymal defect | *Perirenal fat entrapment / renal junctional parenchymal defect | ||
==References== | ==References== |
Revision as of 18:01, 21 September 2015
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Faizan Sheraz, M.D. [2]
When an AML has typical appearances there is essentially no differential. If atypical, especially when fat-poor other lesions to consider include:
- Retroperitoneal liposarcoma invading the kidney:
- Presence of a large vessel extending into the renal cortex suggestive of AML; liposarcoma is hypovascular
- Renal parenchymal defect at the site of tumour contact favours exophytic angiomyolipoma- claw sign
- Calcifications suggest liposarcoma
- Adrenal myelolipoma
- Renal cell carcinoma (RCC)
- May contain fat: lipid necrosis or osseous metaplasia
- Oncocytoma: may contain fat
- Wilm's tumour: may contain fat
- Perirenal fat entrapment / renal junctional parenchymal defect