Prostate cancer screening in low- and middle-income countries: the Mexican case.

Prostate-specific antigen (PSA)-based early detection for prostate cancer is the subject of intense debate. Implementation of organized prostate cancer screening has been challenging, in part because the PSA test is so amenable to opportunistic screening. To the extent that access to cancer screening tests increases in low- and middle-income countries (LMICs), there is an urgent need to thoughtfully evaluate existing and future cancer screening strategies to ensure benefit and control costs. We used Mexico's prostate cancer screening efforts to illustrate the challenges LMICs face. We provide five considerations for policymakers for a smarter approach and implementation of PSA-based screening.

El uso del Antígeno Prostático Específico (APE) para tamizaje para cáncer de próstata sigue siendo tema de amplio debate. La implementación de estrategias de tamiz organizado de cáncer de próstata ha sido un reto en parte porque la prueba de APE se presta para detección oportunista. A medida que aumenta el acceso a las pruebas de detección de cáncer en los países de ingresos bajos y medianos (PIBM), existe la necesidad urgente de evaluar cuidadosamente las estrategias actuales y futuras de detección oportuna de cáncer para garantizar su beneficio y controlar sus costos. Utilizamos los esfuerzos de tamizaje de cáncer de próstata de México para ilustrar los retos para PIBM. Ofrecemos cinco consideraciones dirigidas a tomadores de decisión que permitan contar con estrategias racionales de implementación de tamizaje para cáncer de próstata basado en el uso de APE.

[Testicular Microlithiasis: Update on diagnosis and management.] / Actualidades sobre microlitiasis testicular.

Testicular microlithiasis (TM) is an uncommonurologic condition incidentally diagnosed byscrotal ultrasound. It has been associated with differentdiseases, such as Klinefelter`s syndrome, testicular atrophy,cryptorchidism, testicular torsion, and infertility.However, it can also present in healthy males that haveno associated risk factors. Currently, TM is most oftendetected thanks to the superior resolution of today's ultrasoundequipment, compared with former models. In the1990s, TM was considered a benign condition with noimportant clinical relevance, but later reports associatedit with the development of testicular neoplasias andinfertility. Thus, many authors recommended periodic surveillance with tumor markers and ultrasound imaging,with some even promoting the use of testicular biopsy.The aim of this article is to clearly and specifically presentcurrent information about testicular microlithiasis, toestablish both diagnostic and follow-up indications.

La microlitiasis testicular (MT) es un padecimiento urológico poco frecuente que se diagnostica de forma incidental mediante ltrasonografía escrotal. Ha sido asociado a diversas enfermedades como síndrome de Klinefelter, atrofia testicular, criptorquidia, torsión testicular e infertilidad. Sin embargo, también se puede encontrar en varones sanos sin factores de riesgo asociados. La microlitiasis testicular es detectada con mayor frecuencia en la actualidad, debido a la resolución superior de los equipos de ultrasonido actuales en comparación a los anteriores.  En la década de los  noventa la MT fue considerada una condición benigna sin gran relevancia clínica. Sin embargo, reportes posteriores asociaron este padecimiento al desarrollo de neoplasias testiculares e infertilidad. Por tal motivo muchos autores recomendaban la vigilancia periódica con marcadores tumorales y ultrasonido, e incluso algunos preconizaban el uso de la biopsia testicular. El objetivo del presente articulo de revisión es exponer de manera clara y especifica la evidencia actual de la microlitiasis testicular para así establecer las pautas tanto diagnósticas como de seguimiento.

Treatment of reno-ureteral colic by twelfth intercostal nerve block with lidocaine versus intramuscular diclofenac.

INTRODUCTION AND OBJECTIVE: Renal colic is one of the most intense pains known to humans. Standard treatment usually consists of nonsteroidal anti-inflammatory drugs and opiates, but they do not always provide optimum efficacy and speed in relieving the pain. For more than 25 years, our hospital has been employing twelfth subcostal nerve block. The objective of the present study was to compare the efficacy of subcostal nerve block with lidocaine versus intramuscular diclofenac in renal colic management. METHODS: Sixty patients of both sexes, above the age of 18 years, and presenting with renal colic were randomly selected for the study. The visual analog scale was applied prior to the treatment and at minutes 1, 3, 5, 30, and 45 after the application of the twelfth nerve block or the intramuscular administration of diclofenac. RESULTS: A total of 60 patients, 35 women and 25 men, were included in the study. There were statistically significant differences in the mean scores for pain from minute 1 to minute 45. There were no adverse effects. CONCLUSIONS: Twelfth Subcostal nerve block with lidocaine is an efficacious, safe, inexpensive, and very fast-acting medication for pain control related to renal colic. These characteristics make it superior to diclofenac.

Prostate cancer screening in low- and middle- income countries: the Mexican case / Tamizaje para cáncer de próstata en países de bajos y medianos ingresos: el caso mexicano

Abstract: Prostate-specific antigen (PSA)-based early detection for prostate cancer is the subject of intense debate. Implementation of organized prostate cancer screening has been challenging, in part because the PSA test is so amenable to opportunistic screening. To the extent that access to cancer screening tests increases in low- and middle-income countries (LMICs), there is an urgent need to thoughtfully evaluate existing and future cancer screening strategies to ensure benefit and control costs. We used Mexico's prostate cancer screening efforts to illustrate the challenges LMICs face. We provide five considerations for policymakers for a smarter approach and implementation of PSA-based screening.

Resumen : El uso del Antígeno Prostático Específico (APE) para tamizaje para cáncer de próstata sigue siendo tema de amplio debate. La implementación de estrategias de tamiz organizado de cáncer de próstata ha sido un reto en parte porque la prueba de APE se presta para detección oportunista. A medida que aumenta el acceso a las pruebas de detección de cáncer en los países de ingresos bajos y medianos (PIBM), existe la necesidad urgente de evaluar cuidadosamente las estrategias actuales y futuras de detección oportuna de cáncer para garantizar su beneficio y controlar sus costos. Utilizamos los esfuerzos de tamizaje de cáncer de próstata de México para ilustrar los retos para PIBM. Ofrecemos cinco consideracio nes dirigidas a tomadores de decisión que permitan contar con estrategias racionales de implementación de tamizaje para cáncer de próstata basado en el uso de APE.

Nephron-sparing surgery for clear cell carcinoma in a solitary functional kidney. Case report and literature review.

BACKGROUND: Since the introduction of nephron-sparing surgery, patients with small renal masses and diseases affecting overall renal function have greatly benefited. CLINICAL CASE: We present the case of a 62-year-old male with a 6-cm left renal tumor in the medial parahilar segment with right renal unit functionally excluded, secondary to chronic obstruction due to ureteral lithiasis. Right ureteroscopy was performed with pneumatic lithotripsy. Despite localization and size of the tumor, left nephron-sparing surgery was performed in order to preserve renal function. Follow-up of the patient demonstrates no tumor activity. CONCLUSIONS: Open nephron-sparing surgery has been the standard treatment for small renal masses with peripheral localization; however, in specific cases with deteriorated renal function and tumors >5 cm close to the renal hilum, certain risk must be taken in order to perform this procedure that has proven to be highly effective in preserving renal function. Open nephron-sparing surgery represents a highly effective procedure in small renal masses with a nonfunctional contralateral kidney.

Actualidades sobre microlitiasis testicular / No disponible

La microlitiasis testicular (MT) es un padecimiento urológico poco frecuente que se diagnostica de forma incidental mediante ltrasonografía escrotal. Ha sido asociado a diversas enfermedades como síndrome de Klinefelter, atrofia testicular, criptorquidia, torsión testicular e infertilidad. Sin embargo, también se puede encontrar en varones sanos sin factores de riesgo asociados. La microlitiasis testicular es detectada con mayor frecuencia en la actualidad, debido a la resolución superior de los equipos de ultrasonido actuales en comparación a los anteriores. En la década de los noventa la MT fue considerada una condición benigna sin gran relevancia clínica. Sin embargo, reportes posteriores asociaron este padecimiento al desarrollo de neoplasias testiculares e infertilidad. Por tal motivo muchos autores recomendaban la vigilancia periódica con marcadores tumorales y ultrasonido, e incluso algunos preconizaban el uso de la biopsia testicular. El objetivo del presente articulo de revisión es exponer de manera clara y especifica la evidencia actual de la microlitiasis testicular para así establecer las pautas tanto diagnósticas como de seguimiento

Testicular microlithiasis (TM) is an uncommon urologic condition incidentally diagnosed by scrotal ultrasound. It has been associated with different diseases, such as Klinefelter's syndrome, testicular atrophy, cryptorchidism, testicular torsion, and infertility. However, it can also present in healthy males that have no associated risk factors. Currently, TM is most often detected thanks to the superior resolution of today’s ultrasound equipment, compared with former models. In the 1990s, TM was considered a benign condition with no important clinical relevance, but later reports associated it with the development of testicular neoplasias and infertility. Thus, many authors recommended periodic surveillance with tumor markers and ultrasound imaging, with some even promoting the use of testicular biopsy. The aim of this article is to clearly and specifically present current information about testicular microlithiasis, toestablish both diagnostic and follow-up indications

Mielolipoma de la glándula suprarrenal sintomático. Presentación de un caso y revisión de la literatura / Suprarenal symptomatic mielolipoma. clinical case and literature review

El mielolipoma de la glándula suprarrenal es un tumor raro, benigno, endocrinológicamente inactivo, cuya estructura histológica consiste de tejido adiposo maduro con focos de células hematopoyéticas. La mayoría de los casos reportados son pequeños y asintomáticos, descubiertos en forma incidental. Presentamos el caso de un paciente del sexo femenino cuyo diagnóstico fue establecido clínicamente al presentar sintomatología dolorosa y corroborado con estudios de imagen. Se presenta el manejo quirúrgico y la evolución postoperatoria. Se efectúa una revisión de las características clínicas de estos tumores, así como su perfil por imagen y opciones de tratamiento.