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Sarcomatoid Chromophobe Renal Cell Carcinoma with Heterologous Component

Clear cell renal cell carcinoma (RCC) is the most common malignant renal tumor in adults, while chromophobe RCC (CRCC) is the third most common. Any subtypes of RCC can undergo sarcomatoid differentiation, but heterologous differentiation in sarcomatoid area is very rare in RCC. Here a 61-year male...

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Detalles Bibliográficos
Autores principales: Bharti, Sushma, Ram Choudhary, Gautam, Jyotsna Bharti, Naresh, Kumar Garg, Pawan, B.S, Arsha, Abhay Elhence, Poonam
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Iranian Society of Pathology 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6995683/
https://www.ncbi.nlm.nih.gov/pubmed/32095153
http://dx.doi.org/10.30699/IJP.2019.109242.2147
Descripción
Sumario:Clear cell renal cell carcinoma (RCC) is the most common malignant renal tumor in adults, while chromophobe RCC (CRCC) is the third most common. Any subtypes of RCC can undergo sarcomatoid differentiation, but heterologous differentiation in sarcomatoid area is very rare in RCC. Here a 61-year male is presented with hematuria and palpable mass. Clinicoradiologically, RCC was considered and left radical nephrectomy was performed. A well-circumscribed renal mass located in the upper pole of the left kidney with variegation and extensive areas of bony hard calcification noted, was reported as CRCC with sarcomatoid differentiation containing heterologous component. CRCC subtype has good prognosis but show dismal prognosis when associated with sarcomatous differentiation. We found 11 cases of sarcomatoid CRCC containing heterologous elements reported in indexed English literature. CRCC must be differentiated from Conventional RCC and Oncocytoma. The extensive sampling of the tumor is needed. We report a very rare case of CRCC with sarcomatoid differentiation containing heterologous elements.