Multilocular cystic renal neoplasm of low malignant potential

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Multilocular cystic renal cell carcinoma is a rare kidney tumour.

General

  • No recurrences or metastasis in the literature.[1]
    • This makes one wonder... is it really cancer.
  • Case report rare.[2]

Gross

Features:[1]

  • Cystic with thin septa.
  • Well circumscribed.

Note:

  • This tumour, radiologically, can often be separated from other cystic tumours.[3]

Microscopic

Features:[1]

  • Polygonal cells within the septa.
  • Clear cytoplasm.
  • +/-Calcification (common).

DDx:

IHC

  • EMA +ve.
  • Keratins +ve.
  • CD68 -ve.

See also

References

  1. 1.0 1.1 1.2 Humphrey, Peter A; Dehner, Louis P; Pfeifer, John D (2008). The Washington Manual of Surgical Pathology (1st ed.). Lippincott Williams & Wilkins. pp. 292. ISBN 978-0781765275.
  2. Agarwal, S.; Agrawal, U.; Mohanty, NK.; Saxena, S. (Mar 2011). "Multilocular cystic renal cell carcinoma: a case report of a rare entity.". Arch Pathol Lab Med 135 (3): 290-2. doi:10.1043/2010-0243-LE.1. PMID 21366448.
  3. You, D.; Shim, M.; Jeong, IG.; Song, C.; Kim, JK.; Ro, JY.; Hong, JH.; Ahn, H. et al. (Jul 2011). "Multilocular cystic renal cell carcinoma: clinicopathological features and preoperative prediction using multiphase computed tomography.". BJU Int. doi:10.1111/j.1464-410X.2011.10247.x. PMID 21722289.