Difference between revisions of "Papillary adenoma of the kidney"

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| Caption    = Papillary adenoma. [[H&E stain]].
| Caption    = Papillary adenoma. [[H&E stain]].
| Synonyms  = papillary adenoma, renal papillary adenoma
| Synonyms  = papillary adenoma, renal papillary adenoma
| Micro      = papillae typically with foam cells, +/-psammoma bodies, nuclei usu. low grade, '''must''' be <=0.5 cm
| Micro      = papillae typically with foam cells, +/-psammoma bodies, nuclei usu. low grade, '''must''' be <=1.5 cm
| Subtypes  =
| Subtypes  =
| LMDDx      = [[papillary renal cell carcinoma]], [[metanephric adenoma]]
| LMDDx      = [[papillary renal cell carcinoma]], [[metanephric adenoma]]
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==Microscopic==
==Microscopic==
Features:
Features:
#Histomorphology of ''[[papillary renal cell carcinoma]]''.
#Histomorphology of ''[[papillary renal cell carcinoma]]'' with low [[ISUP nucleolar grade]] (grade 1 or 2).
#'''''Must''''' be <=0.5 cm.<ref name=Ref_GUP288>{{Ref GUP|288}}</ref><ref name=pmid18846240>{{Cite journal  | last1 = Algaba | first1 = F. | title = Renal adenomas: pathological differential diagnosis with malignant tumors. | journal = Adv Urol | volume =  | issue =  | pages = 974848 | month = | year = 2008 | doi = 10.1155/2008/974848 | PMID = 18846240 | PMC = 2563151 | URL = http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2563151/?tool=pubmed }}</ref>
#'''''Must''''' be <=1.5 cm as per 2016 WHO classification.<ref name=pmid26935559>{{Cite journal  | last1 = Moch | first1 = H. | last2 = Cubilla | first2 = AL. | last3 = Humphrey | first3 = PA. | last4 = Reuter | first4 = VE. | last5 = Ulbright | first5 = TM. | title = The 2016 WHO Classification of Tumours of the Urinary System and Male Genital Organs-Part A: Renal, Penile, and Testicular Tumours. | journal = Eur Urol | volume =  | issue =  | pages = | month = Feb | year = 2016 | doi = 10.1016/j.eururo.2016.02.029 | PMID = 26935559 }}</ref>
#*[[Diagnostic size cutoff]] - larger lesions are ''papillary renal cell carcinoma''.
#*[[Diagnostic size cutoff]] - larger lesions are ''papillary renal cell carcinoma''.


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*[[Metanephric adenoma]].
*[[Metanephric adenoma]].


Note:
*The size cut-off used to be <=0.5 cm.<ref name=pmid26935559/><ref name=Ref_GUP288>{{Ref GUP|288}}</ref><ref name=pmid18846240>{{Cite journal  | last1 = Algaba | first1 = F. | title = Renal adenomas: pathological differential diagnosis with malignant tumors. | journal = Adv Urol | volume =  | issue =  | pages = 974848 | month =  | year = 2008 | doi = 10.1155/2008/974848 | PMID = 18846240 | PMC = 2563151 | URL = http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2563151/?tool=pubmed }}</ref>
===Images===
===Images===
<gallery>
<gallery>
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