Incidence of benign lesions according to tumor size in solid renal masses
Int. braz. j. urol
;
35(4): 427-431, July-Aug. 2009. tab
Article
in English
| LILACS
| ID: lil-527200
ABSTRACT
Objective:
The incidence of solid renal masses has increased sharply in recent years due to widespread use of abdominal imaging studies. The aim of the present study was to evaluate the incidence of benign lesions in solid renal masses according to tumor size. Materials andMethods:
The authors retrospectively reviewed the records of 305 patients with 328 renal solid masses treated by surgery. Based on a report by one pathologist, the specimen tumor size and the histology of each lesion were tabulated. The frequency of renal cell carcinoma and benign renal lesions was evaluated and a correlation between tumor size and pathological features of the masses was observed.Results:
The frequency of malignant lesions in the 328 renal masses was 83.2 percent. When lesions were stratified into groups with diameters ¡Ü 3 cm or > 3 cm, the incidence of benign histology was 22.9 percent and 13.3 percent, respectively (p = 0.026). The odds ratios for finding a benign lesion in masses ¡Ü 3 cm was 1.93 (IC 95 percent, 1.07 - 3.46) compared to masses > 3 cm.Conclusion:
The incidence of benign lesions is significantly higher in renal masses smaller than 3 cm in diameter, which should be taken in account when the treatment of renal solid masses is planned.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Kidney Diseases
Type of study:
Incidence study
/
Observational study
/
Prognostic study
/
Risk factors
Limits:
Adolescent
/
Adult
/
Aged
/
Aged80
/
Child
/
Female
/
Humans
/
Male
Language:
English
Journal:
Int. braz. j. urol
Journal subject:
Urology
Year:
2009
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
University of Sao Paulo/BR
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