ABSTRACT
OBJECTIVES: Antenatal hydronephrosis is the most common genitourinary pathologic finding during gestational ultrasonography. Congenital midureteral strictures are an unusual cause of prenatal hydronephrosis, with 13 total previously reported and only 1 diagnosed as a result of antenatal ultrasonography. METHODS: We present 4 cases of midureteral strictures as the cause of antenatal hydronephrosis and review the published data on congenital midureteral obstruction. RESULTS: All midureteral strictures in our series and in the published reports were treated surgically after varying periods of observation. Retrograde pyelography was diagnostic in all cases. CONCLUSIONS: This atypical cause of antenatal hydronephrosis may provide additional insight into the controversy regarding preoperative retrograde pyelography before surgical intervention for ureteropelvic junction obstruction. Given the typical misdiagnosis of ureteropelvic junction obstruction in the setting of midureteral stricture disease, we believe that the threshold for retrograde pyelography should be very low.
Subject(s)
Hydronephrosis/diagnosis , Ureteral Obstruction/congenital , Child, Preschool , Female , Humans , Hydronephrosis/etiology , Hydronephrosis/radiotherapy , Infant , Kidney Pelvis/diagnostic imaging , Kidney Pelvis/surgery , Male , Radiography , Ultrasonography , Ureter/diagnostic imaging , Ureter/surgery , Ureteral Obstruction/diagnostic imaging , Ureteral Obstruction/surgeryABSTRACT
La pielitis incrustante (PI) es una enfermedad infecciosa producida por Corynebacterium urealyticum, cuya prevalencia es muy elevada en pacientes con trasplante renal que ha sufrido frecuentes manipulaciones urológicas y tratamientos antibióticos prolongados. Esta enfermedad es de graves consecuencias para el paciente si no se realiza un diagnóstico y tratamiento antibiótico temprano. La ecografía y la TC muestran imágenes típicas de calcificación en el sistema colector, pudiendo ser la radiografía simple de abdomen normal. Describimos un caso de PI en un paciente transplantado renal (AU)
