Difference between revisions of "Kidney tumours"

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Kidney tumours (view source)

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→‎Mixed epithelial and stromal tumour: split out
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==Mixed epithelial and stromal tumour==
==Mixed epithelial and stromal tumour==
*Abbreviated ''MEST''.
*Abbreviated ''MEST''.
 
{{Main|Mixed epithelial and stromal tumour of the kidney}}
===General===
*Rare - approx. 1.5% of renal neoplasms.<ref name=pmid17454754>{{Cite journal  | last1 = Mai | first1 = KT. | last2 = Elkeilani | first2 = A. | last3 = Veinot | first3 = JP. | title = Mixed epithelial and stromal tumour (MEST) of the kidney: report of 14 cases with male and PEComatous variants and proposed histopathogenesis. | journal = Pathology | volume = 39 | issue = 2 | pages = 235-40 | month = Apr | year = 2007 | doi = 10.1080/00313020701230799 | PMID = 17454754 }}</ref>
*Benign.
*Prevalence: males > females.
 
Note:
*Turbiner ''et al.''<ref name=pmid17414095>{{Cite journal  | last1 = Turbiner | first1 = J. | last2 = Amin | first2 = MB. | last3 = Humphrey | first3 = PA. | last4 = Srigley | first4 = JR. | last5 = De Leval | first5 = L. | last6 = Radhakrishnan | first6 = A. | last7 = Oliva | first7 = E. | title = Cystic nephroma and mixed epithelial and stromal tumor of kidney: a detailed clinicopathologic analysis of 34 cases and proposal for renal epithelial and stromal tumor (REST) as a unifying term. | journal = Am J Surg Pathol | volume = 31 | issue = 4 | pages = 489-500 | month = Apr | year = 2007 | doi = 10.1097/PAS.0b013e31802bdd56 | PMID = 17414095 }}</ref>  have suggested that ''cystic nephroma'' and ''mixed epithelial and stromal tumour (MEST)'' are one tumour.
**The lumping term ''renal epithelial and stromal tumour'', abbreviated ''REST''.
 
===Microscopic===
Features:
*Cysts lined by simple epithelium with hobnailing - '''key feature'''.
*Stroma has an ovarian look:
**''Blue'' (basophilic).
**''Spindle cells''.
 
Notes:
*Parenchymal elements (e.g. glomueruli, tubules) are not found in the septa between the cysts.
 
====Images====
<gallery>
Image:Cystic_nephroma_low_mag.jpg |Cystic nephroma - low mag. (WC/Nephron)
Image:Cystic_nephroma_intermed_mag.jpg |Cystic nephroma - intermed. mag. (WC/Nephron)
</gallery>
===IHC===
Features:<ref name=pmid17454754>{{Cite journal  | last1 = Mai | first1 = KT. | last2 = Elkeilani | first2 = A. | last3 = Veinot | first3 = JP. | title = Mixed epithelial and stromal tumour (MEST) of the kidney: report of 14 cases with male and PEComatous variants and proposed histopathogenesis. | journal = Pathology | volume = 39 | issue = 2 | pages = 235-40 | month = Apr | year = 2007 | doi = 10.1080/00313020701230799 | PMID = 17454754 }}
</ref>
*ER +ve.
*PR +ve.
*CD10 +ve.
 
===DDx===
*Tubulocystic carcinoma.


==Cystic nephroma==
==Cystic nephroma==
Michael
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