Papillary adenoma of the kidney

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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
LM DDx papillary renal cell carcinoma, metanephric adenoma
IHC AMACR +ve
Gross must be <=0.5 cm, cortical lesion
Site kidney - see kidney tumours
Associated Dx often seen with papillary renal cell carcinoma
Clinical history often an incidental finding in a kidney removed for something else
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

Microscopic

Features:

  1. Histomorphology of papillary renal cell carcinoma.
  2. Must be <=0.5 cm.[2][3]

DDx:

Images

  • PA - very low mag.

  • PA - low mag.

  • PA - intermed. mag.

  • PA - intermed. mag.

  • PA - high mag.

www:

IHC

See also

References

  1. ↑ 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.
  2. ↑ 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. ↑ 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/.
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