Images in Paediatrics
An unusual intravesical tumor: nephrogenic adenoma
Un inusual tumor intravesical: adenoma nefrogénico
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array:4 [ "autoresLista" => "Sara Fuentes, Jaume Margarit-Mallol, Carme Ferrer-Cassadó, Carme Grande-Moreillo" "autores" => array:4 [ 0 => array:4 [ "nombre" => "Sara" "apellidos" => "Fuentes" "email" => array:1 [ 0 => "sfuentes@mutuaterrassa.cat" ] "referencia" => array:2 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] 1 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">*</span>" "identificador" => "cor0005" ] ] ] 1 => array:3 [ "nombre" => "Jaume" "apellidos" => "Margarit-Mallol" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] ] ] 2 => array:3 [ "nombre" => "Carme" "apellidos" => "Ferrer-Cassadó" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">b</span>" "identificador" => "aff0010" ] ] ] 3 => array:3 [ "nombre" => "Carme" "apellidos" => "Grande-Moreillo" "referencia" => array:2 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] 1 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">c</span>" "identificador" => "aff0015" ] ] ] ] "afiliaciones" => array:3 [ 0 => array:3 [ "entidad" => "Cirugía Pediátrica, Hospital Universitari Mútua de Terrassa, Terrassa, Barcelona, Spain" "etiqueta" => "a" "identificador" => "aff0005" ] 1 => array:3 [ "entidad" => "Servicio de Anatomia Patològica, Hospital Universitari Mútua Terrassa, Terrassa, Barcelona, Spain" "etiqueta" => "b" "identificador" => "aff0010" ] 2 => array:3 [ "entidad" => "Consorci Sanitari Alt Penedès i Garraf, Sant Pere de Ribes, Barcelona, Spain" "etiqueta" => "c" "identificador" => "aff0015" ] ] "correspondencia" => array:1 [ 0 => array:3 [ "identificador" => "cor0005" "etiqueta" => "⁎" "correspondencia" => "Corresponding author." ] ] ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "Un inusual tumor intravesical: adenoma nefrogénico" ] ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:8 [ "identificador" => "fig0010" "etiqueta" => "Figure 2" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr2.jpeg" "Alto" => 900 "Ancho" => 1200 "Tamanyo" => 173444 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0010" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Cystoscopy view of the larger lesion in the left inferolateral surface of the bladder. Papillary appearance with vascular channels.</p>" ] ] ] "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">We present the case of a boy aged 6 years with chance finding of an intravesical mass in a follow-up ultrasound scan conducted 5 years after ureteral reimplantation surgery for vesicoureteral reflux. As seen in <a class="elsevierStyleCrossRef" href="#fig0005">Fig. 1</a>, the sonogram showed a hyperechoic parietal lesion measuring 10 × 5 mm and with well-demarcated borders, as well as evidence of vascularization in colour Doppler imaging. The scan also detected a second lesion of similar characteristics. A cystoscopy was performed, leading to detection and resection by diathermy of 4 lesions, including the 2 previously identified in the left inferolateral and posterior surfaces of the bladder and 2 smaller lesions located in the dome. <a class="elsevierStyleCrossRef" href="#fig0010">Fig. 2</a> shows the largest one, located in the left inferolateral surface. The final histological diagnosis was nephrogenic adenoma of the bladder. <a class="elsevierStyleCrossRef" href="#fig0015">Fig. 3</a> presents histological examination images including haematoxylin-eosin and immunohistochemistry staining. The patient remains asymptomatic and has not experienced recurrence one year after the intervention. On occasion, the routine follow-up of paediatric urologic patients gives rise to chance findings, and it is important to be aware of certain infrequent diseases that need to be included in the differential diagnosis. Nephrogenic adenoma is a metaplasia of the urothelium that may develop anywhere in the urinary tract.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> It is a benign condition, and it has been hypothesised that local inflammation or repetitive trauma could play a role in its development.<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a> It may be asymptomatic or manifest with dysuria, haematuria or recurrent urinary tract infection. The standard of care is complete endoscopic excision, and follow-up of the patient is required to detect potential recurrences.<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a></p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><elsevierMultimedia ident="fig0010"></elsevierMultimedia><elsevierMultimedia ident="fig0015"></elsevierMultimedia></span>" "pdfFichero" => "main.pdf" "tienePdf" => true "multimedia" => array:3 [ 0 => array:8 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 657 "Ancho" => 900 "Tamanyo" => 55723 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0005" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Sonogram with visualization of a parietal lesion with well-demarcated borders in the left inferolateral surface of the bladder.</p>" ] ] 1 => array:8 [ "identificador" => "fig0010" "etiqueta" => "Figure 2" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr2.jpeg" "Alto" => 900 "Ancho" => 1200 "Tamanyo" => 173444 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0010" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Cystoscopy view of the larger lesion in the left inferolateral surface of the bladder. Papillary appearance with vascular channels.</p>" ] ] 2 => array:8 [ "identificador" => "fig0015" "etiqueta" => "Figure 3" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr3.jpeg" "Alto" => 1103 "Ancho" => 1475 "Tamanyo" => 288047 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0015" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Histological examination. Papillary fronds lined with cuboidal epithelium with eosinophilic cytoplasm and smudged chromatin nuclei (haematoxylin-eosin stain, ×20 magnification on top left and ×40 on top right). Positive staining for α-methylacyl-CoA-racemase (bottom left) and PAX8 (bottom right).</p>" ] ] ] "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0005" "bibliografiaReferencia" => array:3 [ 0 => array:3 [ "identificador" => "bib0005" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Hamartoma of the urinary bladder" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:1 [ 0 => "T.A. Davis" ] ] ] ] ] "host" => array:1 [ 0 => array:1 [ "Revista" => array:4 [ "tituloSerie" => "Northwest Med" "fecha" => "1949" "volumen" => "48" "numero" => "182" ] ] ] ] ] ] 1 => array:3 [ "identificador" => "bib0010" "etiqueta" => "2" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Nephrogenic adenoma of the bladder: a single institution experience assessing clinical factors" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:3 [ 0 => "Y. Yi" 1 => "A. Wu" 2 => "A.P. Cameron" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1590/S1677-5538.IBJU.2017.0155" "Revista" => array:7 [ "tituloSerie" => "Int Braz J Urol." "fecha" => "2018" "volumen" => "44" "numero" => "3" "paginaInicial" => "506" "paginaFinal" => "511" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/29493186" "web" => "Medline" ] ] ] ] ] ] ] ] 2 => array:3 [ "identificador" => "bib0015" "etiqueta" => "3" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "A case series of nephrogenic adenoma of the urethra and bladder in children: review of this rare diagnosis, its natural history and management, with reference to the literature" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:4 [ 0 => "T.J. Crook" 1 => "Z. Mead" 2 => "B. Vadgama" 3 => "P.S. Malone" ] ] ] ] ] "host" => array:1 [ 0 => array:1 [ "Revista" => array:6 [ "tituloSerie" => "J Pediatr Urol." "fecha" => "2006" "volumen" => "2" "numero" => "4" "paginaInicial" => "323" "paginaFinal" => "328" ] ] ] ] ] ] ] ] ] ] ] "idiomaDefecto" => "en" "url" => "/23412879/0000010100000002/v1_202408200511/S2341287924002011/v1_202408200511/en/main.assets" "Apartado" => array:4 [ "identificador" => "77701" "tipo" => "SECCION" "en" => array:2 [ "titulo" => "Images in Paediatrics" "idiomaDefecto" => true ] "idiomaDefecto" => "en" ] "PDF" => "https://static.elsevier.es/multimedia/23412879/0000010100000002/v1_202408200511/S2341287924002011/v1_202408200511/en/main.pdf?idApp=UINPBA00005H&text.app=https://analesdepediatria.org/" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S2341287924002011?idApp=UINPBA00005H" ]
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