Abstract:
:Histologic prognostic parameters in papillary renal cell carcinoma (PRCC) are unclear. The aims were to review the clinicopathological features of PRCC, including Fuhrman grade and International Society of Urological Pathology (ISUP) nucleolar grade, and to identify parameters that may be independent prognostic indicators. PRCCs in patients treated by nephrectomy were retrieved from the pathology files from 1984 to 2010. Parameters studied included tumor multifocality, size, PRCC type (1 or 2), Fuhrman grade, ISUP nucleolar grade, presence of necrosis, lymphovascular invasion, and stage at presentation. Cancer-specific survival (CSS) and overall survival (OS) were used as prognostic measures. Of 154 PRCCs, 112 (73%) were type 1, and 42 (27%), type 2. A total of 125 patients were male, and 29, female, with ages from 26 to 86 (mean, 62.7) years. Fuhrman grade was 1 in 8 (5%), 2 in 95 (62%), 3 in 49 (32%), and 4 in 2 (1%) tumors, respectively. ISUP nucleolar grade was 1 in 47 (31%), 2 in 56 (36%), 3 in 49 (32%), and 4 in 2 (1%) tumors, respectively. Mean follow-up interval was 73.9 months (0.13-222 months). ISUP nucleolar grade was a significant predictor of both CSS and OS in univariate (CSS, P = .001; OS, P = .004) and multivariate (CSS, P = .04; OS, P = .008) analyses, whereas Fuhrman grade was only predictive of CSS in univariate (P = .001) and multivariate (P = .04) analyses. Only ISUP nucleolar grade and lymphovascular invasion were independently prognostic for CSS and OS in univariate and multivariate analyses. Therefore, the ISUP nucleolar grade appears to be superior in predicting survival in patients with PRCC.
journal_name
Hum Patholjournal_title
Human pathologyauthors
Cornejo KM,Dong F,Zhou AG,Wu CL,Young RH,Braaten K,Sadow PM,Nielsen GP,Oliva Edoi
10.1016/j.humpath.2015.07.001subject
Has Abstractpub_date
2015-10-01 00:00:00pages
1411-7issue
10eissn
0046-8177issn
1532-8392pii
S0046-8177(15)00243-9journal_volume
46pub_type
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