Biomedical subjects

C B Congregado Ruiz

Publications and source records attributed to C B Congregado Ruiz.

4 recordsLinked to original sources

PubMed2004

[Analysis of renal neoplasms in adult patients under 40].

OBJECTIVES: To analyze within our sample population the number of patients under 40 receiving surgery as a result of renal neoplasm; to describe the characteristics of these patients and compare them with those of adult patients over 40. PATIENTS AND METHODS: We have revised the clinical history of the 379 patients with renal neoplasm who have undergone surgery in our Service from January 1986 through June 2003. Patients were divided into two groups. Group I, formed by 36 subjects (9.5%) < or = 40. Group II includes 343 patients (90.5%) over 40. Data were included in a database created using the software programme Access and were subsequently analysed using the statistical package SPSS. A descriptive analysis was performed and life expectancy was calculated for both groups using the Kaplan-Meier survival curve. RESULTS: 7.3% of the total number of renal cell carcinomas included in our series occurs in patients of or under 40. No significant differences have been observed as regards the distribution per sexes, laterality, size, incidental occurrence, clinical symptoms, anatomopathology, staging or surgical technique employed. However, we have observed differences as regards cancer-specific survival rate after 5 years, being 94.74% in the case of group I and 68.64% in group II (log-rank 0.0338). CONCLUSIONS: The number of patients < or = 40 undergoing surgery as a result of renal cell carcinoma in the sample under study matches other series already published. No statistically significant difference has been observed as regards staging among patients under and over 40. Differences do exist as regards cancer-specific survival rate. In the case of our patients, irrespective of the age group to which they were ascribed, it is more common to diagnose a renal neoplasm incidentally than through the clinical manifestations.

Adolescent↗

PubMed2004

[Retroperitoneal malignant fibrous histiocytoma].

We report a new case of retroperitoneal tumor: a malignant fibrous histiocytoma, in its less aggressive histologic type, the mixoid variety. This is a recently isolated histologic presentation from other sarcomas, with a low incidence, non-specific clinic findings and poor prognosis due to its tendency to reappear and to produce metastasis.

Aged↗

PubMed2004

[Retroperitoneal neurilemmona].

Schwannoma is an uncommon tumor arising from neural sheath of peripheral nerves. Histological findings showing Antoni A and B zones are the main diagnostic features. We report a new case of a retroperitoneal located one, which is not its most usual place to appear, in a 60 year old male, presenting left flank pain. He received surgical treatment, having a satisfactory evolution.

Humans↗

PubMed2001

[Renal cancer: descriptive analysis of a series of 267 intervened cases].

OBJECTIVE: To present the results of a descriptive analysis of 267 surgically treated renal tumors. METHODS: From January 1986 to October 1999, 267 patients (153 males and 114 females) with renal tumor were treated in our department. All data were introduced into the Access data base program and analyzed using the SPSS software. Descriptive analysis was performed and life expectancy was calculated with the Kaplan-Meier survival curve. Mean follow-up was 42.72 months. RESULTS: 56.4% were in the right and 43.6% were in the left kidney. 41.2% of the cases were incidentally discovered. In the symptomatic patients, the most common presenting feature was hematuria (51.8%). Radical nephrectomy was performed in 94.2%, partial in 3.1% and tumor resection in 2.7%. The lumbar approach was used in 75.5% of the cases. In regard to the histology, 88.7% were carcinomas. Clear cell was the most frequent cell type (91.5%). By grade, 55.8% were GI, 32.9% GII and 11.3% were GIII. By stage (according to the 1992 TNM classification), 64.3% were stage I, 15.4% stage II, 17% stage III and 3.3% stage IV. 80.5% showed no vascular involvement. The 5-year overall survival was 71.93% (mean 114 months; median 167 months). Currently, 76% of the patients are alive. CONCLUSIONS: Distribution by sex in our series was different to that reported in most of the studies. The tumor was incidentally discovered in a high proportion of the cases. The lumbar access was the most widely used surgical approach. The overall survival is similar to that reported by other groups.

Adolescent↗