OBJECTIVES: To determine the percentage of @entity1358 incidentally diagnosed (IRCC) and to compare their clinical and pathological characteristics with symptomatic or non-incidentally diagnosed @entity5 (SRCC). METHODS: We retrospectively study 189 @entity1 who were diagnosed of @entity703 between 1990 and 1999. 166 underwent surgery (149 radical nephrectomy; 17 nephron-sparing surgery). We determine the percentage of IRCC detected by radiological tests and compare them with the SRCC diagnosed after presenting with some of the classic symptoms or @entity3 , with special focus on @entity5 size, pathology stage, @entity5 recurrence, progression and evolution. RESULTS: 87 SRCC (46%); 102 SRCC (54%). There are not differences in terms of age, gender, side, and postoperative hospital stay. @entity5 size was higher in the SRCC (mean 8.5 cm) than in the IRCC (6.3 cm). SRCC @entity5 stage was: @entity2558 27.3%, pT2 27.3%, pT3a 23.8%, pT3b 16.6%, pT3c 2.3%, and pT4 2.3%; IRCC stage was: @entity2558 51.3%, pT2 25.6%, pT3a 10.9%, pT3b 10.9%, pT3c 1.2%, and no pT4. The percentage of @entity1 with lymph node involvement was higher (p = 0.02) in the SRCC (15%) than in the IRCC (4.8%). The percentage of @entity1 with @entity3 at the time of diagnosis was higher in the SRCC group (26%) than in the IRCC (9.2%). Recurrences were more frequent in the SRCC Group (8.3%) than in the IRCC (1.2%) (p = 0.07). @entity5 progression was more frequent in the SRCC group (34%) than in the IRCC (7.3%) (p<0.01). 76% of the @entity1 undergoing nephron sparing surgery were IRCC. CONCLUSIONS: Currently, there is a high percentage of IRCC (46% in our series from 1990-99). @entity703 presenting as IRCC have better prognosis, since they have significantly smaller size, lower stage, less @entity1442 , less recurrences, and less progression than SRCC.

[Clinical-pathological study of XXXX ].

@entity1 :: ('9606', 'Species') :: ['patients'] @entity2558 :: ('58492', 'Gene') :: ['pT1'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'Tumor', 'tumors'] @entity1358 :: ('MESH:D002292', 'Disease') :: ['renal cell carcinomas'] @entity1442 :: ('MESH:D020178', 'Disease') :: ['advanced disease'] @entity3 :: ('MESH:D009362', 'Disease') :: ['metastasis'] @entity703 :: ('MESH:D007680', 'Disease') :: ['renal carcinoma', 'Renal tumors']
@entity1358 :: (MESH:D002292,Disease) :: ['incidental renal cell carcinoma']
