Renal cell carcinoma with fibromyomatous stroma
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Renal cell carcinoma with fibromyomatous stroma, abbreviated RCC FMS, is an evolving subtype of renal cell carcinoma.[1]
Microscopic
Features:
- Fibromyomatous stroma - key feature.
DDx:
- Clear cell renal cell carcinoma.
- ELOC-mutated renal cell carcinoma.
- Clear cell papillary renal cell tumour.
IHC
Comparison between some renal tumours with clear cells
| Tumour | CK7 | CD10 | CK34betaE12 (K903) | GPNMB |
|---|---|---|---|---|
| Clear cell renal cell carcinoma | -ve (may be focal) | +ve | -ve | usu. -ve |
| Clear cell papillary renal cell tumour | +ve (diffuse) | -ve | +ve | -ve[2] |
| ELOC-mutated renal cell carcinoma | +ve | +ve | -ve | -ve |
| TSC/mTOR-mutated renal cell carcinoma | +ve | +ve | -ve | +ve |
See also
References
- ↑ Trpkov K, Williamson SR, Gill AJ, Adeniran AJ, Agaimy A, Alaghehbandan R, Amin MB, Argani P, Chen YB, Cheng L, Epstein JI, Cheville JC, Comperat E, da Cunha IW, Gordetsky JB, Gupta S, He H, Hirsch MS, Humphrey PA, Kapur P, Kojima F, Lopez JI, Maclean F, Magi-Galluzzi C, McKenney JK, Mehra R, Menon S, Netto GJ, Przybycin CG, Rao P, Rao Q, Reuter VE, Saleeb RM, Shah RB, Smith SC, Tickoo S, Tretiakova MS, True L, Verkarre V, Wobker SE, Zhou M, Hes O (June 2021). "Novel, emerging and provisional renal entities: The Genitourinary Pathology Society (GUPS) update on renal neoplasia". Mod Pathol 34 (6): 1167–1184. doi:10.1038/s41379-021-00737-6. PMID 33526874.
- ↑ Li H, Argani P, Halper-Stromberg E, Lotan TL, Merino MJ, Reuter VE, Matoso A (November 2023). "Positive GPNMB Immunostaining Differentiates Renal Cell Carcinoma With Fibromyomatous Stroma Associated With TSC1/2/MTOR Alterations From Others". Am J Surg Pathol 47 (11): 1267–1273. doi:10.1097/PAS.0000000000002117. PMID 37661807.