[Primitive neuroectodermal tumor. Ewing's sarcoma]. / Tumor neuroectodérmico primitivo renal/sarcoma de Ewing.

Primitive neuroectodermal tumor is an extraordinarily rare primary tumor in the kidney and can be mistaken for a variety of other round cell tumors. It is important to recognize each of these entities, because each carries unique therapeutic and prognostic implications. However, accurate diagnosis of these tumors is hindered by their significant morphologic overlap and complicated by their rarity. These neplasm are highly aggressive that tend to recurence and to metastatize. Standard therapy combining surgery, chemotherapy, radiation and genetic therapy. We report a case of primitive neuroectodermal tumor of the kidney in a 50 year old female patient.

Tumor neuroectodérmico primitivo renal/Sarcoma de Swing / Primitive neuroectodermal tumor. Ewing´s sarcoma

Los tumores neuroectodérmicos primitivos de riñón son neoplasias extremadamente raras, pudiendo ser confundidas con toda la variedad de tumores de células redondas de riñón. Es importante hacer diagnóstico diferencial entre estas entidades por sus implicaciones terapéuticas y pronosticas, aunque no deja de ser difícil debido a su infrecuencia. Estos tumores son extremadamente agresivos, con tendencia a la recurrencia y a la diseminación temprana a distancia. El tratamiento combina cirugía, quimioterapia y radioterapia, apoyándose en la terapia génica. Aportamos un caso de tumor neuroectodérmico primitivo de riñón en una paciente de 50 años (AU)

Primitive neuroectodermal tumor is an extraordinarily rare primary tumor in the kidney and can be mistaken for a variety of other round cell tumors. It is important to recognize each of these entities, because each carries unique therapeutic and prognostic implications. However, accurate diagnosis of these tumors is hindered by their significant morphologic overlap and complicated by their rarity. These neplasm are highly aggressive that tend to recurence and to metastatize. Standard therapy combining surgery, chemotherapy, radiation and genetic therapy. We report a case of primitive neuroectodermal tumor of the kidney in a 50 year old female patient (AU)

Carcinoma epidermoide de uretra y glande ¿dos tumores independientes? / Epidermoid carcinoma of the urethra and glans penis two independent tumors?

Un varón de 64 años fue tratado en nuestro hospital por presentar una gran tumoración en el glande peneano. Durante el acto quirúrgico se detectó otra neoformación en la uretra. El estudio microscópico mostró un carcinoma epidermoide concomitante en glande peneano y uretra sin tejido afectado entre ambos tumores

A 64 years-old man is treated in our hospital presenting a big tumor in glans penis. During the surgical act, another neoplasm is detected in the urethra. The microscopic study showed a concomintant epidermoid carcinoma of glans penis and urethra with non-affected tissue between both tumors

[Pseudotumor renal after partial nephrectomy with the use of surgical gelatin sponge]. / Pseudotumor renal tras el uso de materiales hemostáticos en la nefrectomía parcial.

After renal parenchymal sparing surgery, with the use of surgical gelatin sponge, residual defects may persist on imaging studies at the sites of resection. These "pseudotumors" may lead to confusion as to whether a lesion was removed or has recurred. These lesions usually resolve within a year. We report a case of pseudotumor renal parenchymal sparing surgery in a 69 year old man, with resolution of the lesion 8 months after surgery.

[Foreign body simulating kidney tumour]. / Cuerpo extraño simulando tumor renal.

A six cm kidney tumour is found in a prostate control ultrasonography, in a 70 aged men. A chirurgical remove is indicated the tumour presented a very few separation of the kidney. The kidney was only compressed by the mass which contained a chirurgical gauze inside it from a previous surgery 35 years before.

[Priapism as an initial presentation of chronic myeloid leukaemia]. / Priapismo como presentación inicial de leucemia mieloide crónica.

We report the case of a 29 years old patient who presented, in the last three moths, four episodes of priapism without any other symptoms and any previous traumatism. An hemogram reveled that the repeted episodes of priapism were caused by a chronic myeloid leukaemia.

[Pure primary prostate transitional cell carcinoma. A review of our series]. / Carcinoma transicional primario puro de próstata. Revisión de nuestra serie.

Primary prostate transitional cell carcinoma is a very uncommon tumor, that represents about 1% of all prostate tumours. In our institution, only six patients have been diagnosed with pure transitional cell prostate carcinoma until 2002. Bladder origin of the neplasic was ruled out in all cases. We report a study about the progression and survival of prostate transitional cell carcinoma. These prostatic tumours carry a poor prognostic (median survival is 4.6 months) with a strong tendency to metastatic spread. Therefore, we suggest a radical prostatectomy (without cystectomy) when it rules out bladder origin tumour.

Pseudotumor renal tras el uso de materiales hemostáticos en la nefrectomía parcial / Pseudotumor renal after partial nephrectomy with the use of surgical gelatin sponge

Después de una cirugía renal, en la que se usa materiales hemostáticos absorbibles, defectos residuales pueden persistir en los estudios radiológicos en los márgenes de la resección. Estos “pseudotumores” pueden ser confundidos con enfermedad recurrente o residual. Presentamos un caso de pseudotumor renal tras nefrectomía parcial en un varón de 69 años, en el que se decidió actitud expectante, con resolución de la lesión a los 8 meses de la cirugía

After renal parenchymal sparing surgery, with the use of surgical gelatin sponge, residual defects may persist on imaging studies at the sites of resection. These “pseudotumors” may lead to confusion as to whether a lesion was removed or has recurred. These lesions usually resolve within a year. We report a case of pseudotumor renal parenchymal sparing surgery in a 69 year old man, with resolution of the lesion 8 months after surgery

Priapismo como presentación inicial de leucemia mieloide crónica / Priapism as an inicial presentation of chronic myeloid leukaemia

Se presenta el caso de un paciente de 29 años de edad que presentó cuatro episodios de priapismo en los últimos tres meses, sin asociarse a ningún otro síntoma y sin traumatismo previo. Tras la realización de un hemograma se demuestra que la aparición de estos repetidos episodios de priapismo se debe una leucemia mieloide crónica (AU)

We report the case of a 29 years old patient who presented, in the last three moths, four episodes of priapism without any other symptoms and any previous traumatism. An hemogram reveled that the repeted episodes of priapism were caused by a chronic myeloid leukaemia (AU)

Cuerpo extraño simulando tumor renal / Foreing body simulating kidney tumour

Un tumor renal de seis cm es encontrado en una ecografía prostática de control. Se indica una exéresis quirúrgica. Dicha tumoración presentó una mínima separación con el riñón. El riñón estaba únicamente comprimido por la masa la cual contenía una gasa quirúrgica en su interior de una cirugía previa hacía 35 años (AU)

A six cm kidney tumour is found in a prostate control ultrasonography, in a 70 aged men. A chirurgical remove is indicated the tumour presented a very few separation of the kidney. The kidney was only compresed by the mass which contained a chirurgical gauze inside it from a previous surgery 35 years before (AU)

[Epidermoid carcinoma of the urethra and glans penis: two independent tumors?]. / Carcinoma epidermoide de uretra y glande: dos tumores independientes?

A 64 years-old man is treated in our hospital presenting a big tumor in glans penis. During the surgical act, another neoplasm is detected in the urethra. The microscopic study showed a concomintant epidermoid carcinoma of glans penis and urethra with non-affected tissue between both tumors.

[Idiopathic superinfected giant hematocele]. / Hematocele gigante sobreinfectado idiopático.

A 45 year old male patient is attended for a marked increase in the size of the left hemiscrotum totally painless. The diagnosis was haematocele, but no cause was found for the bleeding. Orchidectomy and complete exeresis of the tunica vaginalis was carried out.

[Kidney transplantation. Technique and complications]. / Transplante renal. Técnica y complicaciones.

We want to make in this article, a deep review of our experience in kidney transplantation since the moment we started the technique in 1986 to the end of the year 2000. We also want to make a compilation of the most important points of the surgical technique, patients selection criteria, and the most common and uncommon complications that can appear in kidney transplantation, analizing our results all along this time.

Transplante renal. Técnica y complicaciones / Kidney transplantation. Technique and complications

En este artículo, queremos llevar a cabo una profunda revisión de nuestra experiencia en el transplante renal desde el momento en el que iniciamos la técnica en el año 1986 hasta finales del año 2000.Asímismo queremos compilar los aspectos más importantes de la técnica quirúrgica, criterios de selección de pacientes y las más frecuentes e infrecuentes complicaciones que pueden aparecer en el transplante renal, analizando nuestros resultados a lo largo de estos años (AU)

Hematocele gigante sobreinfectado idiopático / Infected giant idiopathic haematocele

Varón de 45 años que es atendido por un marcado aumento de tamaño del hemiescroto izquierdo totalmente asintomático. El diagnóstico fue de hematocele aunque no se encontró causa evidente del sangrado. Se llevó a cabo orquiectomía y exéresis completa de la túnica vaginal. (AU)

[Intravesical foreign bodies. Review of the literature]. / Cuerpos extraños intravesicales. Revisión de la literatura.

We want to make a literature review about the bladder foreign bodies. This clinical situation is not an usual emergency, but there are a lot of references in urological articles about it. In this article review we want to make a compilation about the symtoms, the different origins of the foreign bodies, and ways of diagnosis and treatment of this pathology. We also want to add our personal experience in a recent case.

[Tumor recurrence in the resected area of the ureteral meatus after endoscopic disinsertion during radical nephroureterectomy]. / Recidiva tumoral en la zona de resección del meato ureteral tras desinserción endoscópica en la nefroureterectomía radical.

The endoscopical resection of the urether in the radical nephroureterectomy is an easy way to treat transitional cell carcinoma of the upper urinary tract. We want to present a complication derived from this surgical technique: the tumor implantation in the resected ureteral meatus zone.