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 | | Micro = papillae typically with foam cells, +/-psammoma bodies, nuclei usu. low grade, '''must''' be <=0.5 cm | ||
| Subtypes = | | Subtypes = | ||
| LMDDx = [[papillary renal cell carcinoma]], [[metanephric adenoma]] | | LMDDx = [[papillary renal cell carcinoma]], [[metanephric adenoma]] | ||
| Line 13: | Line 13: | ||
| Molecular = | | Molecular = | ||
| IF = | | IF = | ||
| Gross = | | Gross = typically subcapsular location | ||
| Grossing = | | Grossing = | ||
| Site = [[kidney]] - see ''[[kidney tumours]]'' | | Site = [[kidney]] - see ''[[kidney tumours]]'' | ||
Revision as of 02:18, 10 October 2014
| Papillary adenoma of the kidney | |
|---|---|
| Diagnosis in short | |
 Papillary adenoma. H&E stain. | |
|
| |
| Synonyms | papillary adenoma, renal papillary adenoma |
|
| |
| LM | papillae typically with foam cells, +/-psammoma bodies, nuclei usu. low grade, must be <=0.5 cm |
| LM DDx | papillary renal cell carcinoma, metanephric adenoma |
| IHC | AMACR +ve |
| Gross | typically subcapsular location |
| Site | kidney - see kidney tumours |
|
| |
| Associated Dx | often seen with papillary renal cell carcinoma |
| Clinical history | often an incidental finding |
| Prevalence | common |
| Prognosis | benign |
| Clin. DDx | other renal tumours |
| Treatment | observation |
Papillary adenoma of the kidney, also renal papillary adenoma, is a benign kidney tumour related to papillary renal cell carcinoma.
General
- Benign.
- Considered a precursor for papillary renal cell carcinoma (PaRCC).[1]
- Stains like PaRCC.
- Found with an increased frequency within the content of PaRCC.
Gross
- Cortical kidney lesion.
- Usually subcapsular.
Microscopic
Features:
- Histomorphology of papillary renal cell carcinoma.
- Must be <=0.5 cm.[2][3]
- Diagnostic size cutoff - larger lesions are papillary renal cell carcinoma.
DDx:
Images
PA - very low mag.
PA - low mag.
PA - intermed. mag.
PA - intermed. mag.
PA - high mag.
www:
IHC
- AMACR +ve.[1]
See also
References
- ↑ 1.0 1.1 Wang, KL.; Weinrach, DM.; Luan, C.; Han, M.; Lin, F.; Teh, BT.; Yang, XJ. (Feb 2007). "Renal papillary adenoma--a putative precursor of papillary renal cell carcinoma.". Hum Pathol 38 (2): 239-46. doi:10.1016/j.humpath.2006.07.016. PMID 17056094.
- ↑ Zhou, Ming; Magi-Galluzzi, Cristina (2006). Genitourinary Pathology: A Volume in Foundations in Diagnostic Pathology Series (1st ed.). Churchill Livingstone. pp. 288. ISBN 978-0443066771.
- ↑ 3.0 3.1 Algaba, F. (2008). "Renal adenomas: pathological differential diagnosis with malignant tumors.". Adv Urol: 974848. doi:10.1155/2008/974848. PMC 2563151. PMID 18846240. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2563151/.