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Produced: 10/10/2025 5:11 PM

Question 20130204

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References:

Subject matter expert

Question:

MP/H Rules/Histology--Kidney, renal pelvis: How is histology coded for a tubulocystic renal cell carcinoma? See Discussion.

Discussion:

Per the resected specimen final diagnosis COMMENT in the pathology report: Tubulocystic renal cell carcinoma is a relatively new renal epithelial neoplasm that has been added to an updated WHO classification of renal tumors. (Srigley et al. The International Society of Urologic Pathology Vancouver Classification of Renal Neoplasia Am J Surg Pathol. 2013;37:1469-1489). The majority of tubulocystic renal cell carcinomas reported in the literature (greater than 90%) have behaved in an indolent manner.

Answer:

Code the histology to 8312/3 [renal cell carcinoma, NOS] per Rule H3. The term "tubulocystic" is not a specific renal cell histology according to our kidney pathology expert.

Cancer Site Category:

Kidney, renal pelvis

Data Item Category:

Histology

Other Category:

N/A

Year:

2013