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B) Coronal PET/CT fusion images showing a right parapharyngeal submucosa hypermetabolic soft tissue mass (SUVmax: 7.6) obliterating the airway and collapsing the piriform sinus in relation to abscess. C) Fusion image in axial section showing hypermetabolic collection (SUVmax: 8.1) invading the visceral space and contacting the anterior border of the thyroid gland and cartilage, surpassing the midline. D) Sagittal fusion section showing an extensive descending restroesophageal-prevertebral mediastinal collection with hypermetabolic peripheral enhancement without affecting the vertebral bodies. E) Axial section showing left pleural effusion and hyperenhancement of the pleural layers in relation to empyema.</p>" ] ] ] "autores" => array:1 [ 0 => array:2 [ "autoresLista" => "R. Valverde-Jorge, I. Fernández-Tercero, M. Jiménez-Jiménez, M. Jauregui-García, J. Genollá-Subirats, E. Rodeño-Ortiz de Zárate" "autores" => array:6 [ 0 => array:2 [ "nombre" => "R." 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Spinelli, V. Peiró, E. Llorente" "autores" => array:3 [ 0 => array:4 [ "nombre" => "V." "apellidos" => "Spinelli" "email" => array:1 [ 0 => "vicente.spinelli@salud.madrid.org" ] "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">*</span>" "identificador" => "cor0005" ] ] ] 1 => array:2 [ "nombre" => "V." "apellidos" => "Peiró" ] 2 => array:2 [ "nombre" => "E." "apellidos" => "Llorente" ] ] "afiliaciones" => array:1 [ 0 => array:2 [ "entidad" => "Departamento de Diagnóstico por Imagen, Hospital Universitario de Fuenlabrada, Madrid, Spain" "identificador" => "aff0005" ] ] "correspondencia" => array:1 [ 0 => array:3 [ "identificador" => "cor0005" "etiqueta" => "⁎" "correspondencia" => "Corresponding author." ] ] ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "Captación del árbol traqueobronquial en estudio PET/TC <span class="elsevierStyleSup">18</span>F-PSMA ([<span class="elsevierStyleSup">18</span>F]DCFPyL) como variante de su distribución fisiológica" ] ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:8 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 1776 "Ancho" => 1508 "Tamanyo" => 172920 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0105" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">In the MIP image and in the fusion images in coronal and sagittal reconstruction, in addition to the usual pattern of physiological distribution of the radiotracer<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a>, an incidental finding can be observed as a marked uptake in the tracheo-bronchial tree.</p>" ] ] ] "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">The prostate membrane specific antigen (PSMA) is expressed on the surface of the normal prostate cell, and it does so with greater intensity in prostate cancer cells, hence its diagnostic usefulness in prostate cancer.<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,2</span></a> PET/CT studies that are performed with this radiotracer in patients with prostate cancer have become more numerous, thus deeming it necessary to know the physiological distribution and its possible variants.</p><p id="par0010" class="elsevierStylePara elsevierViewall">We present the images of a PET/CT PSMA study ([18<span class="elsevierStyleHsp" style=""></span>F]DCFPyL) performed on a 70-year-old male diagnosed with prostate cancer, treated with transperitoneal laparoscopic radical prostatectomy and bilateral ilio-obturatriz lymphadenectomy, who presented biochemical recurrence (PSA 0.36<span class="elsevierStyleHsp" style=""></span>ng/mL) 4 years after surgery (<a class="elsevierStyleCrossRef" href="#fig0005">Fig. 1</a>).</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><p id="par0015" class="elsevierStylePara elsevierViewall">This finding is not commonly mentioned in PET/CT [18<span class="elsevierStyleHsp" style=""></span>F]DCFPyL studies and is considered a variant of physiological uptake.<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a> Usually, the lungs uptake could correspond to infectious/inflammatory processes (such as pneumonia, atelectasia, bronchiectasis, interstitial fibrosis) and even pulmonary neoplasms.<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a> With no morphological changes suggestive of an inflammatory condition that would justify this finding in the image, no other studies were conducted, considering this as a physiological variant. It is important to know this variant and differentiate it from the processes mentioned above.</p></span>" "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "2022-07-04" "fechaAceptado" => "2022-07-25" "multimedia" => array:1 [ 0 => array:8 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 1776 "Ancho" => 1508 "Tamanyo" => 172920 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0105" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">In the MIP image and in the fusion images in coronal and sagittal reconstruction, in addition to the usual pattern of physiological distribution of the radiotracer<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a>, an incidental finding can be observed as a marked uptake in the tracheo-bronchial tree.</p>" ] ] ] "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0005" "bibliografiaReferencia" => array:2 [ 0 => array:3 [ "identificador" => "bib0005" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Prostate-specific membrane antigen PET: clinical utility in prostate cancer, normal patterns, pearls, and pitfalls" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:4 [ 0 => "M.S. 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Marin" ] ] ] ] ] "host" => array:2 [ 0 => array:2 [ "doi" => "10.1186/s40644-020-00300-7" "Revista" => array:5 [ "tituloSerie" => "Cancer Imaging" "fecha" => "2020" "volumen" => "20" "paginaInicial" => "23" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/32169115" "web" => "Medline" ] ] ] ] 1 => array:2 [ "doi" => "10.1186/s40644-020-00300-7" "WWW" => array:1 [ "link" => "https://doi.org/10.1186/s40644-020-00300-7" ] ] ] ] ] ] ] ] ] ] ] "idiomaDefecto" => "en" "url" => "/22538089/0000004200000003/v2_202401190458/S2253808922000970/v2_202401190458/en/main.assets" "Apartado" => array:4 [ "identificador" => "47121" "tipo" => "SECCION" "en" => array:2 [ "titulo" => "Interesting image" "idiomaDefecto" => true ] "idiomaDefecto" => "en" ] "PDF" => "https://static.elsevier.es/multimedia/22538089/0000004200000003/v2_202401190458/S2253808922000970/v2_202401190458/en/main.pdf?idApp=UINPBA00004N&text.app=https://www.elsevier.es/" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S2253808922000970?idApp=UINPBA00004N" ]
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Interesting images
Tracheo-bronchial tree uptake in PET/CT 18F-PSMA ([18F]DCFPyL) a variant of physiological distribution
Captación del árbol traqueobronquial en estudio PET/TC 18F-PSMA ([18F]DCFPyL) como variante de su distribución fisiológica
V. Spinelli
, V. Peiró, E. Llorente
Corresponding author
Departamento de Diagnóstico por Imagen, Hospital Universitario de Fuenlabrada, Madrid, Spain