Difference between revisions of "ALK translocation renal cell carcinoma"

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==Microscopic==
==Microscopic==
Features:
Features:
*Mix of morphologies - including rhabdoid change, sarcomatoid change, "[[unclassified renal cell carcinoma]]", [[papillary renal cell carcinoma]].
*Mix of morphologies - including [[Renal cell carcinoma with rhabdoid morphology|rhabdoid change]], sarcomatoid change, "[[unclassified renal cell carcinoma]]", [[papillary renal cell carcinoma]].


DDx:
DDx:

Revision as of 20:02, 4 April 2019

ALK translocation renal cell carcinoma, also ALK-rearranged renal cell carcinoma and ALK-positive renal cell carcinoma, is a proposed entity within the Vancouver modification of the 2004 WHO classification of renal neoplasia.[1]

General

  • Extremely rare - 1 in 829 consecutively screened patients.[2]
    • In 2016, less than 17 cases reported.[3]
  • May be related to renal medullary carcinoma which is reported to have an ALK rearrangement - t(2;10)(p23;q22).[4]
  • May respond to ALK inhibitors such as alectinib[5] or crizotinib.[3]

Microscopic

Features:

DDx:

IHC

Features:[6]

See also

References

  1. Srigley, JR.; Delahunt, B.; Eble, JN.; Egevad, L.; Epstein, JI.; Grignon, D.; Hes, O.; Moch, H. et al. (Oct 2013). "The International Society of Urological Pathology (ISUP) Vancouver Classification of Renal Neoplasia.". Am J Surg Pathol 37 (10): 1469-89. doi:10.1097/PAS.0b013e318299f2d1. PMID 24025519.
  2. 2.0 2.1 Lee, C.; Park, JW.; Suh, JH.; Nam, KH.; Moon, KC. (Oct 2013). "ALK-Positive Renal Cell Carcinoma in a Large Series of Consecutively Resected Korean Renal Cell Carcinoma Patients.". Korean J Pathol 47 (5): 452-7. doi:10.4132/KoreanJPathol.2013.47.5.452. PMID 24255633.
  3. 3.0 3.1 Jeanneau, M.; Gregoire, V.; Desplechain, C.; Escande, F.; Tica, DP.; Aubert, S.; Leroy, X. (Nov 2016). "ALK rearrangements-associated renal cell carcinoma (RCC) with unique pathological features in an adult.". Pathol Res Pract 212 (11): 1064-1066. doi:10.1016/j.prp.2016.07.015. PMID 27554841.
  4. Mariño-Enríquez, A.; Ou, WB.; Weldon, CB.; Fletcher, JA.; Pérez-Atayde, AR. (Mar 2011). "ALK rearrangement in sickle cell trait-associated renal medullary carcinoma.". Genes Chromosomes Cancer 50 (3): 146-53. doi:10.1002/gcc.20839. PMID 21213368.
  5. Pal, SK.; Bergerot, P.; Dizman, N.; Bergerot, C.; Adashek, J.; Madison, R.; Chung, JH.; Ali, SM. et al. (07 2018). "Responses to Alectinib in ALK-rearranged Papillary Renal Cell Carcinoma.". Eur Urol 74 (1): 124-128. doi:10.1016/j.eururo.2018.03.032. PMID 29685646.
  6. Jeanneau, M.; Gregoire, V.; Desplechain, C.; Escande, F.; Tica, DP.; Aubert, S.; Leroy, X. (Nov 2016). "ALK rearrangements-associated renal cell carcinoma (RCC) with unique pathological features in an adult.". Pathol Res Pract 212 (11): 1064-1066. doi:10.1016/j.prp.2016.07.015. PMID 27554841.