RESUMEN 6: BRAZILIAN PRIMARY RENAL TUMORS: CLINICAL AND PATHOLOGICAL REVIEW OF 137 CASES WITH EMPHASIS ON RENAL CORTICAL EPITHELIAL NEOPLASMS.
Sueli Suzigan*, Marcio El Ammar Müller**, Wilson de Souza Lima*, Carlos Benedito Menezes Verona**, Miguel Zerati Filho** Larpac Laboratory* and Institute of Urology and Nephrology (IUN)**, São José do Rio Preto, SP, Brazil
IV-CVHAP 2001 COMUNICACIÓN-E - 002
La versión electrónica
completa de este trabajo podrá encontrarse on-line, una vez
evaluado y aceptado, en la URL: http://conganat.uninet.edu/COMUNICACION-E/002/
Abstract
In Brazilian papers related to primary
renal tumors and specially those using the "1997
Rochester/Minnesota Renal Cell Carcinoma Classification",
documentation about renal cortical epithelial neoplasms (RCEN)
is scarce. This paper is meant to correlate clinical and
pathological data on this classification. Between January 1978
and March 2000 Larpac Laboratory received 137 primary renal
neoplasms for analysis and they were reviewed retrospectively.
From these, 122 cases were followed up by IUN. The following
primary renal neoplasms were diagnosed: Collecting Duct
Carcinoma (CDC) (0.74%), Leiomyosarcoma (1.46%), Cystic
Nephroma (1.46%), Sarcoma (1.46%), Unclassified Carcinoma
(1.46%), Oncocytoma (2.19%), Angiomyolipoma (6.57%), Wilms'
Tumor (8.03%), Transitional Cell Carcinoma (15.33%) and Renal
Cell Carcinoma (RCC) (61.31%). In relation to non-RCEN tumors:
Leiomyosarcoma was seen in the sixth and seventh decades of
life, only in females and in left kidneys. Cystic Nephroma as
well as Sarcoma were found only in right kidneys, but the
first was seen in the first and fourth decades of life and in
males and the last only in the seventh decade of life and in
females. Angiomyolipoma occurred from the fourth to the
seventh decades of life, in a higher incidence in females
(77.78%) and in right kidneys (66.67%). Wilms' Tumor was found
in the first and second decades of life, with a frequency of
63.64% in both females and right kidneys. Transitional Cell
Carcinoma occurred from the fifth to the ninth decades of life,
with no differences between the sexes, but with a slight
prevalence (52.38%) in right kidneys. In relation to RCEN
tumors: CDC occurred in the third decade of life, in a male
and in the left kidney. Unclassified Carcinoma was seen in the
sixth and eighth decades of life and only in males. Oncocytoma
was found from the sixth to the eighth decades of life, with
an occurrence rate of 66.67% both for females and left kidneys.
RCC was detected from the second to the ninth decades of life,
with a slight prevalence in males and in left kidneys. With
regard to RCC no significant differences were found between
microscopic patterns and age or between microscopic patterns
and sex. However, the median tumor diameter on male sex was
significantly greater than that on female Sex (Vp=0,036) The
subtypes of RCC were: Chromophobe RCC (16.67%), Papillary RCC
(22.62%) and Conventional RCC (60.71%). There were 12 patients
with RCC who died of the disease: zero of Chromophobe type,
one of Papillary type and 11 of Conventional type. The two
first types of RCC gave a better prognosis than the last one.
Apartado: Uropatología
Palabras clave: Renal Cortical Epithelial Neoplasms; Kidney; Tumors; Pathology
Neoplasias del Epitelio Cortical Renal, Riñón, Tumores, Patología
Fecha recepción: 04/09/2000
Estado Comité Científico: Aceptado
Fecha evaluación:
19/09/2000
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