[Non-Hodgkin's lymphoma and urinary tract. About a case reported]. / Linfoma no Hodgkin y aparato urinario. A propósito de un caso.

We pass to describe a case of non Hodgkin's secondary lymphoma with metachronic affectation in bladder and left kidney, in a patient with different extranodals locations. Both in bladder and kidney, it was a low grade lymphoma type B with centrofolicular cells. We suggest haematogenous dissemination and affinity of lymphomatous clone to the urinary tract. We establish some diagnostic considerations, such about the therapeutic management in this type of pathologies.

Linfoma no Hodgkin y aparato urinario. A propósito de un caso / Non-Hodgkin´s lymphoma and urinary tract. About a case reported

Describimos un caso de linfoma secundario no Hodgkin con presentación metacrónica en vejiga y riñón izquierdo, en un paciente con diferentes afectaciones extragonadales. Tanto en la vejiga como en el riñón se trataba de un linfoma de bajo grado tipo B de células centrofoliculares. Se sugiere la diseminación hematógena y afinidad del clon linfomatoso por el aparato urinario. Se establecen algunas consideraciones diagnósticas, así como sobre el enfoque terapéutico en este tipo de patologías (AU)

We pass to describe a case of non Hodgkin’s secondary lymphoma with metachronic affectation in bladder and left kidney, in a patient with different extranodals locations. Both in bladder and kidney, it was a low grade lymphoma type B with centrofolicular cells. We suggest haematogenous dissemination and affinity of lymphomatous clone to the urinary tract. We establish some diagnostic considerations, such about the therapeutic management in this type of pathologies (AU)

[The double-J ureteral catheter: its historical development and current status]. / El catéter ureteral doble-J: desarrollo histórico y situación actual.

OBJECTIVE: To review the history of the development of the double-J ureteral catheter, a device that is necessary in current urological practice. METHODS/RESULTS: A review of the literature shows that although there are references on the use of the ureteral catheter before 1967, the history of its development began in that year, when Zimskind and co-workers designed and used the first self-retaining catheter that was inserted cystoscopically. However, it was not until 1978 when the double-J shape was adopted following the design of Finney. CONCLUSIONS: A review of the history of bioimplants development in the field of Urology shows that catheter design and its biomaterials have developed in parallel, in an attempt to create a device that functions well and one that is also well-tolerated by the body in order to reduce the catheter-related complications.

[Double J ureteral catheter. Clinical complications]. / El catéter ureteral doble J. Complicaciones clínicas.

OBJECTIVE: To analyze the clinical complications of double-J ureteral catheters. METHODS: The most relevant studies published in the literature since the self-retaining indwelling catheter was first described in 1967 are reviewed. RESULTS: The experience and results reported in the most relevant studies are presented. CONCLUSIONS: The double-J ureteral stent has become an integral part of the urological armamentarium. It allows good urinary drainage from the kidney to the bladder and is generally safe and well-tolerated. However, different complications may occur with short- or long-term use of indwelling stents. These complications vary from minor side effects such as hematuria, dysuria, frequency, flank and suprapubic pain, to major complications such as vesico-ureteric reflux, stent migration, encrustation, urinary infection, stent fracture, necrosis and ureteral fistula. Most of these complications require removal of the catheter.

[The proximal migration of a double-J catheter. A review of the predisposing factors. Apropos a case]. / Migración proximal del catéter doble-J. Revisión de factores predisponentes. A propósito de un caso.

Case report of a patient bearer of a double-J ureteral catheter due to ureteral lithiasis. After persistent renoureteral pain and fever, the proximal migration of the catheter is confirmed radiologically. The predisposing factors for this complication, described in the literature, are reviewed.

[Radiopacity of double-J ureteral catheters. Computed tomography quantification and clinical implications]. / Radiopacidad de los catéteres ureterales Doble-J. Cuantificación por T.A.C. e implicaciones clínicas.

OBJECTIVE: To determine whether knowledge about the degree of radiopacity of the double-J ureteral catheters utilized in Spanish hospitals suffices for correct radiologic control and subsequent follow-up. METHODS: The CT attenuation index was utilized to determine the degree of radiopacity of 23 double-J ureteral stents, comprised of different biomaterials and from different manufacturers, that are used in Spanish hospitals. RESULTS: The values ranged from 1,000-3,070 Hounsfield units. CONCLUSION: All the catheters analyzed were sufficiently radiopaque to permit good radiologic control during insertion and subsequent follow-up. The radiopacity of the stent depends on the metal salt employed during the manufacturing process and not on the biomaterial.

[Endoscopic cervicotomy: elective treatment in bladder neck sclerosis]. / Cervicotomía endoscópica: tratamiento de elección en la esclerosis del cuello vesical.

OBJECTIVES: The present study compared the efficacy of perimetric resection of the sclerotic ring (TR) and two-incision endoscopic cervicotomy (TC) for bladder neck sclerosis. METHODS: Fourteen cases (11 primary and 3 recurrence) underwent perimetric TR using a conventional 24 F curved loop resectoscope to excise the sclerotic diaphragm completely. In 11 cases (9 primary and 2 recurrence following previous perimetric (TR) two deep incisions were made at 5 and 7 o'clock with the Collins blade. Occasionally, the Sachse urethrotome had to precede the insertion of the conventional 24 F sheath. RESULTS: Of the 14 cases with bladder neck sclerosis that underwent perimetric TR, 5 (36%) recurred, while no recurrence was observed in the 11 patients treated by double TC. The results were assessed on the basis of the clinical findings and control flowmetry. CONCLUSIONS: Dysuria was the most common clinical symptom and was confirmed by flowmetry. Confirmation must be done endoscopically and preferably under anesthesia to permit treatment, if required, during the same session. TC is more reliable and TR is not advocated because of the high recurrence rate.

[Paratesticular rhabdomyosarcoma]. / Rabdomiosarcoma paratesticular.

Presentation of one case of embryonic paratesticular rhabdomyosarcoma in a 19-year old male. Following high inguinal radical orchiectomy, he required hemiscrotectomy, and it was found to be a foreign body granuloma. Prior to staging lymphadenectomy, therapy was complemented with radiotherapy and polychemotherapy according to a VAC protocol. The patient shows clinical remission at two and a half years after being diagnosed and one and a half years after completion of treatment.

[Inverted papilloma of the ureter. Review and treatment criteria]. / Papiloma invertido de uréter. Revisión y criterio de tratamiento.

We report a case of inverted papilloma of the ureter, a rare disease entity. To our knowledge, this makes the 22nd case reported in the literature. Patient anatomopathologic work up included electron microscopy and immunohistochemical methods. This condition is compared to urothelial tumours of the ureter and we discuss the therapeutic approach. Correct treatment is by tumor excision including its base by segmental resection of the ureter and end-to-end ureterorrhaphy or ureterocystoneostomy in tumors of the lower third. A case submitted to endoscopic resection with good clinical results has been recently described by Cabezas Zamora. Perioperative biopsy does not appear to provide more data relative to the surgical option. Like other authors, we believe that these warrant the same close follow-up as in urothelioma.