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Question: 20170052 Status
Final

References
Source 1:   2012 Multiple Primaries Histology Rules
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Notes:  
Source 2:  
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Question

MP/H Rules/Histology--Bladder:  Is urothelial carcinoma, high-grade, predominantly solid type, coded as 8120/3 or 8230/3? See Discussion.



Discussion

Urinary bladder: Invasive urothelial carcinoma, high-grade, 4.5cm, predominantly solid type, arising in background of carcinoma in-situ, carcinoma grossly extends into perivesical adipose tissue; lymph-vascular invasion is seen.

 



Answer

Assign histology code 8120/3, urothelial carcinoma, NOS.  Solid type is not a recognized variant of urothelial tumors and likely represents the appearance of the urothelial cells within the tumor and not a specific histologic type.



History


Last Updated
08/18/2017

Date Finalized
09/20/2017