Difference between revisions of "Acquired cystic disease-associated renal cell carcinoma"

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==Microscopic==
==Microscopic==
Features:
Features:
*Tubular structures with cribriforming/a sieve-like architecture.<ref>{{Cite journal  | last1 = Srigley | first1 = JR. | last2 = Delahunt | first2 = B. | last3 = Eble | first3 = JN. | last4 = Egevad | first4 = L. | last5 = Epstein | first5 = JI. | last6 = Grignon | first6 = D. | last7 = Hes | first7 = O. | last8 = Moch | first8 = H. | last9 = Montironi | first9 = R. | title = The International Society of Urological Pathology (ISUP) Vancouver Classification of Renal Neoplasia. | journal = Am J Surg Pathol | volume = 37 | issue = 10 | pages = 1469-89 | month = Oct | year = 2013 | doi = 10.1097/PAS.0b013e318299f2d1 | PMID = 24025519 }}
*Fused tubular structures/cribriforming/sieve-like architecture.<ref>{{Cite journal  | last1 = Srigley | first1 = JR. | last2 = Delahunt | first2 = B. | last3 = Eble | first3 = JN. | last4 = Egevad | first4 = L. | last5 = Epstein | first5 = JI. | last6 = Grignon | first6 = D. | last7 = Hes | first7 = O. | last8 = Moch | first8 = H. | last9 = Montironi | first9 = R. | title = The International Society of Urological Pathology (ISUP) Vancouver Classification of Renal Neoplasia. | journal = Am J Surg Pathol | volume = 37 | issue = 10 | pages = 1469-89 | month = Oct | year = 2013 | doi = 10.1097/PAS.0b013e318299f2d1 | PMID = 24025519 }}
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**[[Hobnail]] cells.
**Focal papillary architecture - common.<ref name=pmid16434887>{{Cite journal  | last1 = Tickoo | first1 = SK. | last2 = dePeralta-Venturina | first2 = MN. | last3 = Harik | first3 = LR. | last4 = Worcester | first4 = HD. | last5 = Salama | first5 = ME. | last6 = Young | first6 = AN. | last7 = Moch | first7 = H. | last8 = Amin | first8 = MB. | title = Spectrum of epithelial neoplasms in end-stage renal disease: an experience from 66 tumor-bearing kidneys with emphasis on histologic patterns distinct from those in sporadic adult renal neoplasia. | journal = Am J Surg Pathol | volume = 30 | issue = 2 | pages = 141-53 | month = Feb | year = 2006 | doi =  | PMID = 16434887 }}</ref>
**Tumour cells have prominent nucleoli ([[ISUP nucleolar grade]] 3) and eosinophilic cytoplasm.
*Oxylate crystals - '''important'''.
*Oxylate crystals - '''important'''.
**Look somewhat like cholesterol clefts.
**Look somewhat like cholesterol clefts.
**Seen easily in [[polarized light]].
**Seen easily in [[polarized light]].
*[[Acquired cystic disease]] in background - required.
**Changes of [[end-stage kidney]] (obsolete glomeruli, thyroidization, interstitial fibrosis).


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