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Inicio Actas Urológicas Españolas (English Edition) Intraoperative injection of 99mmTc-nanocolloid for localization of nonpalpable i...
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Vol. 39. Issue 6.
Pages 383-386 (July - August 2015)
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Vol. 39. Issue 6.
Pages 383-386 (July - August 2015)
Skill and talent
Intraoperative injection of 99mmTc-nanocolloid for localization of nonpalpable intratesticular tumors in organ-sparing surgery
Inyección intraoperatoria de nanocoloide con tecnecio-99 metaestable para la localización de tumores intratesticulares no palpables en orquiectomías parciales
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J.M. Ruiz-Domínguez
Corresponding author
jmruizdominguez@gmail.com

Corresponding author.
, L. Ibarz-Servio, G. García-de Manuel, O. Calaf Perisé
Servicio de Urología, Hospital Germans Trias i Pujol, Badalona, Barcelona, Spain
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Abstract
Objective

Radical orchidectomy is the standard treatment for malignant testis tumors. Radical orchidectomy results in androgen deprivation, infertility and impaired psychological well-being, especially in synchronous bilateral tumors, metachronous contralateral tumors or tumor in a solitary testis. According to the European Association of Urology Guidelines, if pre-operative testosterone level is normal and the tumor volume is less than 30% of the testicular volume, organ preserving surgery can be performed. For nonpalpable tumors, organ-sparing surgery needs a precise intraoperative localization with high-frequency ultrasound, especially for nonpalpable tumors.

Material and methods

We report two cases of nonpalpable intratesticular tumors successfully localized using 99mmTc nanocolloid injected with intraoperative US and detected with a γ-ray detection probe.

Conclusions

This method is easily reproducible and safe for the patient. This technique could guarantee complete excision of the tumor, especially if the mass is poorly delimited.

Keywords:
Nonpalpable
Intratesticular
Tumor
Technetium-99mm
Organ-sparing surgery
Intraoperative testicular ultrasound
Resumen
Objetivo

La orquiectomía radical es el tratamiento estándar para los tumores malignos de testículo. Esto supone deprivación androgénica, infertilidad o trastornos psicológicos, sobre todo en caso de tumores testiculares bilaterales sincrónicos, metacrónicos contralaterales o tumores en teste único. Según las guías clínicas europeas, la orquiectomía parcial con intención de preservar la masa testicular se podría llevar a cabo si la tumoración ocupa menos del 30% del volumen testicular y los valores de testosterona preoperatorios son normales. Para la práctica de una orquiectomía parcial es necesario una adecuada localización del tumor, sobre todo son intratesticulares no palpables, mediante el uso de ecografía testicular intraoperatoria de alta frecuencia.

Material y métodos

En este artículo presentamos 2 casos de tumores intratesticulares no palpables correctamente localizados mediante la inyección de un nanocoloide de tecnecio-99 metaestable guiado por ecografía intraoperatoria y detectados mediante una gammacámara portátil.

Conclusiones

Es una técnica fácilmente reproductible y segura para el paciente. Nos permite garantizar la completa exéresis del tumor, sobre todo si están mal delimitados.

Palabras clave:
No palpable
Intratesticular
Tumor
Tecnecio-99 metaestable
Orquiectomía parcial
Ecografía testicular intraoperatoria

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