Angiomyolipoma differential diagnosis: Difference between revisions
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*[[Wilm's tumor]]: may contain fat | *[[Wilm's tumor]]: may contain fat | ||
*Perirenal fat entrapment / renal junctional parenchymal defect | *Perirenal fat entrapment / renal junctional parenchymal defect | ||
*Retroperitoneal [[sarcoma]] | |||
**[[Liposarcoma]] | |||
**[[Leiomyosarcoma]] | |||
*Renal cell carcinoma with sarcomatoid differentiation | |||
*Renal leiomyoma - very rare - desmin +ve, HMB-45 -ve<ref name=pmid25517956>{{Cite journal | last1 = Patil | first1 = PA. | last2 = McKenney | first2 = JK. | last3 = Trpkov | first3 = K. | last4 = Hes | first4 = O. | last5 = Montironi | first5 = R. | last6 = Scarpelli | first6 = M. | last7 = Nesi | first7 = G. | last8 = Aron | first8 = M. | last9 = Sangoi | first9 = AR. | title = Renal Leiomyoma: A Contemporary Multi-institution Study of an Infrequent and Frequently Misclassified Neoplasm. | journal = Am J Surg Pathol | volume = | issue = | pages = | month = Dec | year = 2014 | doi = 10.1097/PAS.0000000000000354 | PMID = 25517956 }}</ref> | |||
==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} |
Revision as of 20:56, 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]
Overview
Differential Diagnosis
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 tumor: may contain fat
- Perirenal fat entrapment / renal junctional parenchymal defect
- Retroperitoneal sarcoma
- Renal cell carcinoma with sarcomatoid differentiation
- Renal leiomyoma - very rare - desmin +ve, HMB-45 -ve[1]
References
- ↑ Patil, PA.; McKenney, JK.; Trpkov, K.; Hes, O.; Montironi, R.; Scarpelli, M.; Nesi, G.; Aron, M.; Sangoi, AR. (2014). "Renal Leiomyoma: A Contemporary Multi-institution Study of an Infrequent and Frequently Misclassified Neoplasm". Am J Surg Pathol. doi:10.1097/PAS.0000000000000354. PMID 25517956. Unknown parameter
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