RESUMEN
PURPOSE: To evaluate the clinical usefulness of the results obtained with (18)F-FDG PET/CT in relation to CT in the preoperative staging of patients with peritoneal carcinomatosis secondary to primary or recurrent ovarian cancer candidates to cytoreductive surgery and hyperthermic intraoperative intraperitoneal chemotherapy (HIPEC). MATERIAL AND METHODS: A retrospective study comparing the results obtained with CT and (18)F-FDG PET/CT in the preoperative evaluation of a series of 59 patients was performed. In all patients the peritoneal carcinomatosis index (PCI) was determined by preoperative radiological CT and 18F-FDG PET/CT and compared with surgical PCI, which was considered as reference. RESULTS: Of the 59 patients studied, in 55 peritoneal carcinomatosis presences were confirmed (4 patients had complete responses to neoadjuvant chemotherapy). The mean surgical, CT and 18F-FDG PET/CT PCI was 9.46±7.70, 3.69±3.96 and 2.25±1.02, respectively. In the global disease detection, CT showed a higher positive likelihood ratio (LR+) than (18)F-FDG PET/CT (15.3, 95% CI 8.35-28.04 vs. 3.47, 95% CI 3.36-5.11) and a lower negative likelihood ratio (LR-) than 18F-FDG PET/CT (0.67, 95% CI 0.61-0.73 vs. 0.82, 95% CI 0.76-0.88). In every region of the abdomen the CT showed a greater LR+ than 18F-FDG PET/CT and a lower LR- than 18F-FDG PET/CT. CONCLUSIONS: CT showed the best diagnostic results compared to (18)F-FDG PET/CT to confirme the presence of peritoneal disease. The lower performance of the (18)F-FDG PET/CT suggests that the main utility of (18)F-FDG PET/CT is to evaluate a possible metastatic extraperitoneal spread of the disease.
Asunto(s)
Carcinoma/diagnóstico por imagen , Procedimientos Quirúrgicos de Citorreducción , Fluorodesoxiglucosa F18/uso terapéutico , Neoplasias Glandulares y Epiteliales/diagnóstico por imagen , Neoplasias Ováricas/diagnóstico por imagen , Neoplasias Peritoneales/diagnóstico por imagen , Tomografía Computarizada por Tomografía de Emisión de Positrones , Radiofármacos/uso terapéutico , Tomografía Computarizada por Rayos X , Adulto , Anciano , Carcinoma/secundario , Carcinoma Epitelial de Ovario , Femenino , Humanos , Persona de Mediana Edad , Recurrencia Local de Neoplasia , Neoplasias Glandulares y Epiteliales/patología , Neoplasias Ováricas/patología , Neoplasias Peritoneales/patología , Valor Predictivo de las Pruebas , Estudios Retrospectivos , Tomografía Computarizada por Rayos X/métodos , Carga TumoralRESUMEN
Utriculocele is the engrossment of the prostate utricle with occlusion and/or cystic formation, sometimes including the ejaculatory conducts. We report three patients diagnosed with utriculocele with different presentation forms: hypospermia, haematuria and mictional syndrome, and the treatment used. Theories on their formation, clinical presentation forms described in the literature, diagnostic means, most frequent associations, and different therapeutic alternatives are all discussed as well as a revision of the reported cases.