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Inicio Revista Española de Patología Utilidad de la biopsia cilindro guiada por control ecográfico en el diagnóstic...
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Vol. 39. Issue 4.
Pages 219-227 (October - December 2006)
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Vol. 39. Issue 4.
Pages 219-227 (October - December 2006)
Originales
Utilidad de la biopsia cilindro guiada por control ecográfico en el diagnóstico y manejo de los tumores renales
Usefulness of ultrasound-guided core biopsy in the diagnosis and management of renal tumours
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1335
José I. López1, Aitor Fernández de Larrinoa1, Rosa Zabala2, Laura Oleaga2, José L. del Cura2, Francisco J. Bilbao1
Hospital de Basurto. Universidad del País Vasco (EHU/UPV). Bilbao
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Resumen
Antecedentes

La biopsia guiada por control ecográfico está siendo utilizada de manera creciente en los últimos años como aproximación diagnóstica inicial en los tumores renales, aunque su aceptación entre radiólogos y patólogos aún no es generalizada.

Métodos

Durante un periodo de 6 años (2000-2005), se han biopsiado por este método y con agujas 18G un total de 48 tumores renales en 47 pacientes.

Resultados

Se observó un predominio de varones (34V/13M) y la edad promedio se situó en 51,7 años (rango 1-92). Treinta y siete (77,1%) casos correspondieron a neoplasias, incluyendo adenocarcinomas renales (25 casos), oncocitomas (3 casos), linfomas (3 casos), tumores de Wilms (2 casos), un tumor carcinoide metastásico, un carcinoma epidermoide metastático, un nefroma quístico y un sarcoma fusocelular. Cinco casos (10,4%) correspondieron a pseudotumores (3 quistes renales y 2 pielonefritis crónicas). La biopsia proporcionó tejido renal normal en 4 casos y tejido fibroadiposo en 2. Se detectaron mínimas discrepancias en la adjudicación de la variante histológica del cáncer en 2 casos.

Conclusiones

La biopsia cilindro guiada por ecografía es un método muy útil y fiable para el diagnóstico de los tumores renales, y debería ser incluida como herramienta de primera línea en su manejo. Sin embargo, para la obtención de óptimos resultados que puedan llevar a un tratamiento individualizado, se precisa una estrecha colaboración entre clínicos, radiólogos y patólogos.

Palabras clave:
Biopsia cilindro
ecografía
adenocarcinoma renal
tumor renal
diagnóstico
Summary
Background

Ultrasound-guided core biopsy (USCB) has being increasingly used in the last years for diagnosis of renal masses. However, its use has not still reached a generalised acceptance among radiologists and pathologists.

Methods

Over a 6-year period (2000-2005), a total of 48 renal masses in 47 patients were biopsied under ultrasound guidance using 18G needles.

Results

Males predominated in the series (34M/13F), and the average age was 51.7 years (range 1-92). Thirty-seven (77.1%) cases were neoplasms. Diagnostic categories included renal cell carcinoma (25 cases), oncocytoma (3 cases), malignant lymphoma (3 cases), Wilms tumour (2 cases), carcinoid tumour, squamous cell carcinoma, metastatic, cystic nephroma, and spindle cell sarcoma (one each). Five cases (10.4%) were pseudotumours (3 renal cysts and 2 chronic pyelonephritides). The core biopsy obtained was normal renal tissue in 4 cases and fibroadipous tissue in 2. Minor discrepancies in the assignment of the histological variant were detected in 2 cases.

Conclusions

Ultrasound-guided core biopsy is a very useful and reliable method in the diagnosis of renal masses and should be included as a first-line tool in its management. Close cooperation between clinicians, radiologists and pathologists is needed to obtain optimal results that may prompt an individualised treatment in every case.

Key words:
Ultrasound
core biopsy
renal cell carcinoma
renal tumour
diagnosis

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