Sarcomatoid urothelial carcinoma
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| Sarcomatoid urothelial carcinoma | |
|---|---|
| Diagnosis in short | |
 Sarcomatoid urothelial carcinoma. H&E stain. | |
| Subtypes | (subtype of urothelial carcinoma) |
| LM DDx | sarcoma, carcinosarcoma - esp. in women, other sarcomatoid carcinomas, collision tumour |
| IHC | GATA3 +ve |
| Site | urothelium - urinary bladder, ureter, renal pelvis |
|
| |
| Prevalence | very rare |
| Prognosis | poor |
| Treatment | resection if feasible |
Sarcomatoid urothelial carcinoma (abbreviated sarcomatoid UC), also sarcomatoid urothelial cell carcinoma (abbreviated sarcomatoid UCC), is a rare variant of urothelial carcinoma.[1]
General
- Rare[1] approximately 0.1% of bladder carcinomas - based on the SEER database in the time span 1973-2004.[2]
- Aggressive >55% dead within one year of presentation.[1]
Gross
Microscopic
Features:
- Urothelial carcinoma (classic or recognizable variant).
- Sarcomatoid differentiation - typically (undifferentiated) spindle cells.
- Approximately have 10% of heterologous elements,[1] e.g. chondrosarcomatous differentiation, osteosarcomatous differentiation.
DDx:
- Sarcoma - esp. those arising from the retroperitoneum.
- Carcinosarcoma - esp. in women.
- Other sarcomatoid carcinomas, e.g. sarcomatoid prostate carcinoma.
- Collision tumour (rare) - components should not intermingle.
Images
Sarcomatoid UCC - low mag.
Sarcomatoid UCC - intermed. mag.
Sarcomatoid UCC - high mag.
IHC
- GATA3 +ve (16 +ve of 22 cases[5]).
See also
References
- ↑ 1.0 1.1 1.2 1.3 Fatima, N.; Canter, DJ.; Carthon, BC.; Kucuk, O.; Master, VA.; Nieh, PT.; Ogan, K.; Osunkoya, AO. (Jun 2015). "Sarcomatoid urothelial carcinoma of the bladder: a contemporary clinicopathologic analysis of 37 cases.". Can J Urol 22 (3): 7783-7. PMID 26068625.
- ↑ Wang, J.; Wang, FW.; Lagrange, CA.; Hemstreet Iii, GP.; Kessinger, A. (2010). "Clinical features of sarcomatoid carcinoma (carcinosarcoma) of the urinary bladder: analysis of 221 cases.". Sarcoma 2010. doi:10.1155/2010/454792. PMID 20706685.
- ↑ Nicolas, MM.; Nazarullah, A.; Guo, CC. (Apr 2014). "Sarcomatoid urothelial carcinoma with chondrosarcomatous differentiation of the ureter: a case report.". Anal Quant Cytopathol Histpathol 36 (2): 111-6. PMID 24902363.
- ↑ Tian, X.; Zhao, J.; Wang, Y.; Xing, N. (Sep 2014). "Sarcomatoid carcinoma of the renal pelvis: A case report.". Oncol Lett 8 (3): 1208-1210. doi:10.3892/ol.2014.2240. PMID 25120689.
- ↑ Fatima, N.; Osunkoya, AO. (Aug 2014). "GATA3 expression in sarcomatoid urothelial carcinoma of the bladder.". Hum Pathol 45 (8): 1625-9. doi:10.1016/j.humpath.2014.03.015. PMID 24824028.