Non-Hodgkin lymphoma mimicking peritonitis in a patient on peritoneal dialysis
Linfoma no-Hodgkin simulando una peritonitis en un paciente en diálisis peritoneal
a Servicio de Nefrología. Departamento de Medicina, Universidad Autónoma de Chile. Universidad Católica del Maule. Chile,
b Servicio de Nefrología. Departamento de Medicina, Universidad Autónoma de Chile. Universidad Católica del Maule, Chile,
c Servicio de Nefrología, Hospital de Talca, Chile,
d Ex-jefe de sección, Hospital Clínico San Carlos, España,
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] "autores" => array:1 [ 0 => array:2 [ "autoresLista" => "Ramón Ruiz-Mejía" "autores" => array:1 [ 0 => array:2 [ "nombre" => "Ramón" "apellidos" => "Ruiz-Mejía" ] ] ] ] ] "idiomaDefecto" => "en" "Traduccion" => array:1 [ "es" => array:9 [ "pii" => "X0211699514054459" "doi" => "10.3265/Nefrologia.pre2014.Apr.12466" "estado" => "S300" "subdocumento" => "" "abierto" => array:3 [ "ES" => true "ES2" => true "LATM" => true ] "gratuito" => true "lecturas" => array:1 [ "total" => 0 ] "idiomaDefecto" => "es" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/X0211699514054459?idApp=UINPBA000064" ] ] "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/X2013251414054456?idApp=UINPBA000064" "url" => "/20132514/0000003400000005/v0_201502091605/X2013251414054456/v0_201502091606/en/main.assets" ] "en" => array:11 [ "idiomaDefecto" => true "titulo" => "Non-Hodgkin lymphoma mimicking peritonitis in a patient on peritoneal dialysis" 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Peñaloza, Agustín Fuentes, Francisco Coronel" "autores" => array:4 [ 0 => array:3 [ "nombre" => "Margarita" "apellidos" => "Delgado-Córdova" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "affa" ] ] ] 1 => array:3 [ "nombre" => "Juan C." "apellidos" => "Peñaloza" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">b</span>" "identificador" => "affb" ] ] ] 2 => array:3 [ "nombre" => "Agustín" "apellidos" => "Fuentes" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">c</span>" "identificador" => "affc" ] ] ] 3 => array:3 [ "nombre" => "Francisco" "apellidos" => "Coronel" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">d</span>" "identificador" => "affd" ] ] ] ] "afiliaciones" => array:4 [ 0 => array:3 [ "entidad" => "Servicio de Nefrología. Departamento de Medicina, Universidad Autónoma de Chile. Universidad Católica del Maule. Chile, " "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "affa" ] 1 => array:3 [ "entidad" => "Servicio de Nefrología. Departamento de Medicina, Universidad Autónoma de Chile. Universidad Católica del Maule, Chile, " "etiqueta" => "<span class="elsevierStyleSup">b</span>" "identificador" => "affb" ] 2 => array:3 [ "entidad" => " Servicio de Nefrología, Hospital de Talca, Chile, " "etiqueta" => "<span class="elsevierStyleSup">c</span>" "identificador" => "affc" ] 3 => array:3 [ "entidad" => " Ex-jefe de sección, Hospital Clínico San Carlos, España, " "etiqueta" => "<span class="elsevierStyleSup">d</span>" "identificador" => "affd" ] ] ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "Linfoma no-Hodgkin simulando una peritonitis en un paciente en diálisis peritoneal" ] ] "textoCompleto" => "<p class="elsevierStylePara"><span class="elsevierStyleBold">To the Editor,</span></p><p class="elsevierStylePara">Cloudy peritoneal fluid in peritoneal dialysis (PD) patients is most commonly due to an increase in leukocytes as an expression of bacterial peritonitis. Occasionally, when there is cloudy fluid, we must differentiate between a peritoneal infection with a negative culture and non-infectious peritoneal inflammation (sterile peritonitis).</p><p class="elsevierStylePara"> </p><p class="elsevierStylePara"><span class="elsevierStyleBold">CASE REPORT</span></p><p class="elsevierStylePara"> </p><p class="elsevierStylePara">Our patient was 59-year-old, on PD since October 2012 with a history of type 2 diabetes mellitus and chronic kidney disease secondary to diabetic nephropathy.</p><p class="elsevierStylePara">The patient came to the clinic with abdominal pain and cloudy peritoneal fluid, referring to a decrease in ultrafiltration. Two weeks earlier, the patient had been diagnosed with a nasal neoplasm. The results of the peritoneal fluid were: cloudy appearance, 700 leukocytes/μl (80% mononuclear and 20% polymorphonuclear); despite the predominance of mononuclear leukocytes, we started empiric antibiotic therapy with intraperitoneal ceftazidime and vancomycin. The abdominal examination did not show signs of peritoneal irritation or masses; the peritoneal catheter outlet and tunnel were normal. The blood tests displayed: leukocytes 37,000/mm<span class="elsevierStyleSup">3</span>, platelets 640,000/mm<span class="elsevierStyleSup">3</span>, haemoglobin 10.3g/dl, creatinine 5.4mg/dl, urea 180mg/dl, Na 138mEq/l, K 4mEq/l, calcium 9.5mg/dl, phosphorus 4.8mg/dl, albumin 3.9mg/dl. The peritoneal dialysis cultures taken days later were negative. A computerised axial tomography of the skull, thorax and abdomen was carried out to complete the nasal mass study in the following days, with the results showing scattered mediastinal and retroperitoneal lymphadenopathies. The anatomical pathology of the nasal biopsy was reported as non-Hodgkin lymphoma of large B cells and the cytology of the peritoneal fluid showed atypical lymphocytes. The patient began chemotherapy and remained on PD without further dialysis incidents.</p><p class="elsevierStylePara">The presence of abdominal pain associated with cloudy peritoneal fluid in a PD patient is generally associated with peritonitis. For the diagnosis of bacterial peritonitis, at least two of the following three conditions are required: abdominal pain alone or accompanied by other abdominal symptoms, peritoneal fluid with more than 100 leukocytes/μl, with more than 50% being polymorphonuclear, and the culture or Gram stain showing the existence of micro-organisms<span class="elsevierStyleSup">1</span>.</p><p class="elsevierStylePara">It is difficult to distinguish between a peritoneal infection with a negative culture and non-infectious peritoneal inflammation (sterile peritonitis). A negative peritoneal culture is generally due to technical failures in the processing of samples, and as such, management is complicated given that there is infectious peritonitis without bacterial growth in the culture. It is advised to revise the culture technique when the latter is negative in more than 20% of occasions and ask the patient about previous use of antibiotics<span class="elsevierStyleSup">2</span>. To achieve a quick diagnosis in cases of sterile peritonitis, the Spanish PD guidelines give a general outline, taking into account the presence or absence of cells in the peritoneal fluid and the type of cells. An increase in polymorphonuclear cells may be due to inflammation of the viscera within or around the peritoneum, medication or peritoneal fluid that is contaminated by endotoxins. If eosinophils increase, we must suspect an allergic reaction to the dialysis material, medication and peritoneal irritation due to retrograde blood or after peritonitis due to fungi and parasites. An increase in mononuclear cells may be associated with icodextrin or infection due to mycobacteria or fungi. If there are also red blood cells, the following must be considered: ovulation, retrograde menstruation, ovarian cyst rupture, hypertonic solution, peritoneal adhesions, physical exercise and catheter-induced trauma. When there is a high number of mononuclear and malignant cells, we must consider lymphoma or peritoneal metastases. However, an absence of cells may be due to an increase in fibrin or triglycerides<span class="elsevierStyleSup">3,4</span>.</p><p class="elsevierStylePara">The literature reports some cases of suspected peritonitis in PD associated with tumour processes, amongst them a patient with recurrent renal cell carcinoma diagnosed in the peritoneal fluid cytology<span class="elsevierStyleSup">5</span>. Another patient had sterile peritonitis with a history of lymphoma diagnosed ten years earlier. The peritoneal fluid cytology allowed atypical lymphocytes to be observed and, as in our case, despite peritoneal invasion, the patient continued with the PD technique<span class="elsevierStyleSup">6</span>.</p><p class="elsevierStylePara">In conclusion, we must highlight that in the differential diagnosis of sterile peritonitis, we must not forget the potential existence of a neoplastic process.</p><p class="elsevierStylePara"> </p><p class="elsevierStylePara"><span class="elsevierStyleBold">Conflicts of interest</span></p><p class="elsevierStylePara"> </p><p class="elsevierStylePara">The authors declare that they have no conflicts of interest related to the contents of this article.</p>" "pdfFichero" => "P1-E574-S4714-A12386-EN.pdf" "tienePdf" => true "PalabrasClave" => array:1 [ "en" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Keywords" "identificador" => "xpalclavsec437672" "palabras" => array:1 [ 0 => "Peritoneal dialysis" ] ] ] ] "bibliografia" => array:2 [ "titulo" => "Bibliography" "seccion" => array:1 [ 0 => array:1 [ "bibliografiaReferencia" => array:6 [ 0 => array:3 [ "identificador" => "bib1" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:3 [ "referenciaCompleta" => "Montenegro J. Peritonitis e infecciones del catéter en la diálisis peritoneal. Available at: http://dx.doi.org/10.3265/Nefrologia.2010.pub1.ed80.chapter2826." "contribucion" => array:1 [ 0 => null ] "host" => array:1 [ 0 => null ] ] ] ] 1 => array:3 [ "identificador" => "bib2" "etiqueta" => "2" "referencia" => array:1 [ 0 => array:3 [ "referenciaCompleta" => "Li PK, Szeto CC, Piraino B, Bernardini J, Figueiredo AE, Gupta A, et al. Peritoneal dialysis-related infections recommendations: 2010 update. Perit Dial Int 2010;30:393-423. <a href="http://www.ncbi.nlm.nih.gov/pubmed/20628102" target="_blank">[Pubmed]</a>" "contribucion" => array:1 [ 0 => null ] "host" => array:1 [ 0 => null ] ] ] ] 2 => array:3 [ "identificador" => "bib3" "etiqueta" => "3" "referencia" => array:1 [ 0 => array:3 [ "referenciaCompleta" => "Montenegro J, Molina A, Rodríguez-Palomares R. Peritonitis en diálisis peritoneal. Guías clínicas de práctica clínica en diálisis peritoneal. Sociedad Española de Nefrología; 2005." 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Nephron 1991;58:121. <a href="http://www.ncbi.nlm.nih.gov/pubmed/1857472" target="_blank">[Pubmed]</a>" "contribucion" => array:1 [ 0 => null ] "host" => array:1 [ 0 => null ] ] ] ] 5 => array:3 [ "identificador" => "bib6" "etiqueta" => "6" "referencia" => array:1 [ 0 => array:3 [ "referenciaCompleta" => "Vlahakos D, Rudders R, Simon G, Canzanello V. Lymphoma-mimicking peritonitis in a patient on continuous ambulatory peritoneal dialysis (CAPD). Perit Dial Int 1990;10:165-7. <a href="http://www.ncbi.nlm.nih.gov/pubmed/2085602" target="_blank">[Pubmed]</a>" "contribucion" => array:1 [ 0 => null ] "host" => array:1 [ 0 => null ] ] ] ] ] ] ] ] ] "idiomaDefecto" => "en" "url" => "/20132514/0000003400000005/v0_201502091605/X2013251414054448/v0_201502091606/en/main.assets" "Apartado" => array:4 [ "identificador" => "35437" "tipo" => "SECCION" "en" => array:2 [ "titulo" => "Letters to the Editor - Brief Case Reports" "idiomaDefecto" => true ] "idiomaDefecto" => "en" ] "PDF" => "https://static.elsevier.es/multimedia/20132514/0000003400000005/v0_201502091605/X2013251414054448/v0_201502091606/en/P1-E574-S4714-A12386-EN.pdf?idApp=UINPBA000064&text.app=https://revistanefrologia.com/" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/X2013251414054448?idApp=UINPBA000064" ]
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