title: [Hydatidosis simulating a cardiac tumour with pulmonary metastases].
abstract: BACKGROUND
  The presence of multiple symptomatic pulmonary nodules and one cardiac tumour in a child requires urgent diagnosis and treatment. Until a few decades ago, the diagnosis of a cardiac tumour was difficult and was based on a high index of suspicion from indirect signs, and required angiocardiography for confirmation. Echocardiography and other imaging techniques have also helped in the detection of cardiac neoplasms. However, it is not always easy to make the correct diagnosis.
  
  
  METHODS
  The case is presented of a 12 year-old boy with pulmonary symptoms, and diagnosed with a cardiac tumour with lung metastases. The presence of numerous pulmonary nodules was confirmed in our hospital. The echocardiogram detected a solid cardiac nodule in the right ventricle. Magnetic resonance imaging confirmed the findings and the diagnosis. Puncture-aspiration of a lung nodule gave the diagnosis of hydatidosis. He underwent open-heart surgery with cardiac cyst resection and treated with anthelmintics. The lung cysts were then excised, and he recovered uneventfully.
  
  
  CONCLUSIONS
  This child had multiple pulmonary nodules and a solid cardiac nodule, and was suspected of having a cardiac tumour with pulmonary metastases. However, given the clinical history, background and morphology of pulmonary nodules, another possible aetiology for consideration is echinococcosis. The clinical picture of cardiac hydatidosis and its complications is highly variable. The clinical history is essential in these cases, as well as having a high index of suspicion.
  
  
  CONCLUSIONS
  Hydatidosis should be included in the differential diagnosis of a solid, echogenic, cardiac nodule. The treatment for cardiopulmonary hydatid cysts is surgical, followed by anthelmintics.
authors.affiliation: Servicio de Pediatría y Puericultura, Clínica San Miguel, Igualatorio Médico Quirúrgico de Navarra, Pamplona, España.
authors.forename: Marta
authors.initials: M
authors.lastname: Martín-Izquierdo
authors.affiliation: Departamento de Cardiología y Cirugía Cardíaca, Sección de Cirugía Cardíaca, Clínica Universidad de Navarra, Pamplona, España. Electronic address: amtrenor@gmail.com.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Martín-Trenor
mesh_terms: D000871:Anthelmintics / Q000627:therapeutic use; D044963:Biopsy, Fine-Needle; D002648:Child; D003131:Combined Modality Therapy; D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D004443:Echinococcosis / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000601:surgery; D004445:Echinococcosis, Pulmonary / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000601:surgery; D004452:Echocardiography; D006331:Heart Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000469:parasitology / Q000628:therapy; D006338:Heart Neoplasms / Q000175:diagnosis; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis / Q000556:secondary; D008279:Magnetic Resonance Imaging; D008297:Male; D012383:Romania / Q000208:ethnology; D014057:Tomography, X-Ray Computed
chemical_list: D000871:Anthelmintics
keywords: Cardiac echinococcosis; Cardiac surgery; Cardiac tumour; Cirugía cardíaca; Cirugía pulmonar; Hidatidosis cardíaca; Hidatidosis pulmonar; Multiple pulmonary nodules; Nódulos pulmonares múltiples; Pulmonary echinococcosis; Pulmonary surgery; Tumor cardíaco