Question: 20170052

Status


Final

Category


#1:   MP/H Rules
#2:   Histology
#3:   Bladder


References


Source 1:   2007 MP/H Rules
pgs:  
Notes:  
Source 2:  
pgs:  
Notes:  


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