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
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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